1,639,382 Page views

DatePage views
20131202: 14158
20131202: 9614
20131202: 22276
20131202: 20450
20131202: 8453
20131202: 10756
20131202: 2611
20131202: 4199
20131208: 3560
20131202: 20495
20131208: 5930
20131202: 8824
20131208: 769
20131202: 7124
20131208: 135
20131208: 113
20131208: 162
20131202: 3094
20131202: 14556
20131202: 17692
20131202: 15650
20131202: 34918
20131202: 38171
20131202: 35104
20131202: 15378
20131202: 5464
20131202: 12161
20131202: 7011
20151207: 31
20151207: 34
20151207: 45
20151207: 47
20151207: 45
20151207: 25
20151207: 151
20151207: 33
20151207: 12
20151207: 47
20151207: 32
20151207: 29
20151207: 12
20151207: 49
20151207: 55
20151207: 27
20151207: 69
20151207: 186
20151207: 59
20151207: 54
20151207: 48
20151207: 73
20141207: 120
20141207: 52
20141207: 61
20141207: 52
20141207: 41
20151207: 33
20151207: 47
20151207: 47
20151207: 47
20151207: 56
20141207: 52
20141207: 95
20141207: 32
20141207: 33
20141207: 56
20141207: 39
20141207: 27
20141207: 38
20161203: 49
20141207: 111
20161203: 65
20141207: 74
20161203: 93
20141207: 39
20161203: 54
20161203: 32
20161203: 30
20161203: 41
20161203: 89
20161203: 49
20151207: 162
20151207: 53
20151207: 27
20131209: 637
20131209: 301
20141207: 13
20141207: 52
20141207: 54
20141207: 29
20141207: 42
20141207: 41
20141207: 27
20141207: 309
20141207: 98
20141207: 51
20131209: 234
20141207: 52
20131209: 172
20131209: 490
20131209: 741
20131209: 284
20131209: 380
20131209: 223
20131209: 815
20131209: 2424
20141207: 41
20141207: 83
20141207: 47
20141207: 57
20131209: 273
20131209: 2060
20131209: 395
20131209: 170
20131209: 1712
20131209: 574
20131209: 729
20161201: 32
20161201: 34
20151201: 91
20161201: 62
20161201: 65
20161201: 83
20161201: 41
20161201: 22
20161201: 36
20161201: 21
20141209: 22
20141209: 31
20141209: 38
20141209: 71
20161201: 44
20141209: 65
20161201: 35
20141209: 101
20161201: 34
20151203: 91
20151203: 89
20141209: 341
20141209: 78
20141209: 242
20151203: 65
20151203: 114
20151203: 84
20151203: 785
20151203: 56
20151203: 34
20151203: 58
20161201: 27
20161201: 66
20161201: 42
20161201: 35
20161201: 80
20161201: 38
20151203: 83
20141209: 48
20141209: 78
20141209: 49
20141209: 157
20161201: 146
20141209: 45
20161201: 59
20141209: 43
20161201: 59
20141209: 51
20161201: 56
20151201: 279
20151201: 57
20141209: 67
20151201: 38
20141209: 33
20151201: 39
20151201: 43
20151203: 63
20151201: 57
20151201: 57
20151203: 117
20151201: 100
20151203: 282
20151201: 45
20151203: 58
20151201: 40
20151203: 75
20151203: 91
20151203: 93
20151203: 87
20151203: 46
20151203: 70
20151203: 75
20161201: 20
20141209: 46
20161201: 25
20161201: 23
20161201: 57
20161201: 67
20141209: 456
20161201: 32
20141209: 355
20161201: 45
20141209: 53
20161201: 23
20131209: 228
20141209: 61
20161201: 65
20141209: 139
20141209: 60
20141209: 83
20141209: 665
20141209: 120
20151201: 49
20151201: 64
20151201: 25
20151201: 35
20151201: 35
20151201: 30
20151201: 199
20151201: 2243
20151201: 132
20151203: 54
20151201: 1709
20151203: 73
20151203: 66
20151203: 41
20151203: 57
20131209: 135
20151203: 41
20151203: 45
20151203: 73
20131209: 553
20151203: 123
20131209: 116
20131209: 592
20131209: 136
20151203: 125
20131209: 137
20131209: 637
20131209: 170
20131209: 2661
20141209: 74
20131209: 230
20131209: 590
20151201: 116
20131204: 11055
20131204: 17160
20141203: 82
20141203: 42
20141203: 57
20141203: 95
20141203: 105
20141203: 51
20141203: 34
20141203: 147
20141203: 86
20141203: 73
20141203: 74
20141203: 103
20141203: 89
20141203: 110
20141203: 82
20141203: 100
20141203: 307
20141203: 170
20141203: 70
20141203: 408
20141031: 81
20141031: 131
20141031: 90
20141031: 106
20141031: 57
20141031: 90
20141031: 1382
20141031: 30
20141031: 55
20141203: 643
20141031: 38
20141102: 51
20141203: 155
20141031: 63
20141102: 49
20141031: 51
20141102: 55
20141031: 31
20141102: 47
20141102: 37
20141102: 20
20141102: 45
20141102: 69
20131204: 1404
20141031: 30
20141102: 46
20141031: 54
20141031: 512
20141031: 59
20141031: 64
20141031: 81
20131204: 1757
20131204: 998
20131204: 1507
20141203: 146
20131204: 975
20141203: 671
20141203: 96
20141203: 75
20141203: 158
20141203: 128
20141203: 106
20141203: 618
20141102: 27
20141203: 103
20141102: 26
20141102: 97
20141102: 86
20141102: 220
20141102: 89
20141102: 165
20141102: 99
20141102: 54
20141102: 102
20131204: 2836
20131204: 4224
20131204: 5299
20131204: 5959
20141102: 69
20131204: 2034
20141102: 46
20131204: 1553
20131204: 4727
20131204: 8218
20131204: 8218
20131204: 9289
20131204: 10136
20141102: 39
20141102: 75
20141102: 49
20141102: 22
20141102: 44
20141102: 91
20141102: 75
20131204: 11073
20131204: 6146
20131204: 17272
20131204: 8769
20141102: 43
20141102: 77
20141102: 103
20131204: 15678
20131204: 8822
20131204: 7375
20131204: 5879
20131204: 3668
20131204: 1485
20131204: 6573
20151031: 69
20151031: 51
20151031: 34
20151031: 32
20151031: 68
20151031: 82
20151031: 152
20151031: 34
20151031: 40
20151031: 37
20131206: 2785
20131206: 4969
20131206: 277
20131206: 464
20151102: 32
20151102: 38
20151031: 218
20131102: 292
20151102: 31
20151102: 25
20151102: 14
20151031: 186
20151102: 28
20151031: 53
20151102: 51
20151031: 223
20151102: 41
20151031: 63
20151102: 44
20151031: 264
20151102: 18
20151031: 89
20131206: 669
20151031: 40
20151031: 51
20131206: 2717
20131206: 2974
20151031: 69
20131206: 429
20131206: 561
20131206: 1537
20131206: 1456
20131206: 1118
20131206: 530
20131102: 588
20131206: 820
20131102: 144
20131206: 2142
20131102: 125
20131102: 77
20131102: 256
20131102: 154
20131102: 116
20131102: 185
20151102: 23
20131102: 290
20151102: 14
20131102: 944
20131102: 493
20151031: 38
20151031: 45
20151031: 74
20151031: 133
20151031: 65
20151031: 66
20151031: 61
20151031: 22
20131206: 2886
20151031: 66
20131206: 2370
20131206: 1064
20131206: 1670
20131206: 1159
20131206: 916
20131206: 970
20131206: 735
20131206: 259
20131102: 4342
20131206: 716
20131206: 1022
20131102: 113
20131102: 759
20131102: 1009
20131102: 791
20131102: 777
20131102: 142
20131102: 81
20131102: 158
20131206: 395
20131206: 189
20131206: 799
20131201: 136215
20131102: 734
20131102: 798
20131102: 415
20131102: 1357
20131201: 148168
20131102: 707
20131201: 50563
20131102: 383
20131102: 266
20131102: 480
20131102: 953
20131102: 3053
20131202: 7467
20131202: 9981
20131206: 1501
20131202: 9052
20131202: 12358
20131202: 12452
20131202: 13103
20141201: 201
20141201: 233
20141201: 316
20141201: 766
20141201: 174
20141201: 140
20141201: 500
20141201: 322
20141201: 629
20141201: 159
20141201: 190
20141201: 307
20141201: 93
20141201: 2935
20141201: 236
20141201: 400
20141201: 309
20141201: 128
20141201: 115
20141201: 167
20141201: 68
20141201: 149
20141201: 519
20141201: 68
20141201: 694
20141201: 163
20141201: 165
20141201: 111
20141201: 596
20141204: 116
20151204: 45
20151204: 48
20151204: 206
20151204: 108
20151204: 62
20151204: 55
20151204: 79
20151204: 35
20141204: 83
20141204: 150
20141204: 18
20141204: 83
20141204: 89
20141204: 35
20151204: 81
20151204: 57
20151204: 38
20151204: 73
20151204: 75
20151204: 74
20151204: 121
20151204: 77
20151204: 49
20151204: 658
20151204: 79
20151204: 97
20151204: 63
20151204: 80
20151204: 78
20151204: 85
20151204: 88
20151204: 74
20151204: 51
20151204: 69
20151204: 51
20151204: 53
20151102: 10
20151102: 74
20151102: 26
20151102: 52
20151102: 65
20151102: 26
20151102: 70
20151102: 26
20151102: 45
20151102: 46
20151102: 44
20151102: 57
20151102: 57
20151102: 70
20151102: 68
20151102: 60
20151102: 78
20151102: 49
20151102: 60
20131031: 282
20131031: 599
20161202: 56
20131031: 192
20131031: 886
20131031: 389
20161202: 17
20131031: 1101
20141206: 37
20161202: 19
20131031: 264
20141206: 46
20161202: 25
20131031: 207
20141206: 54
20161202: 30
20131031: 285
20141206: 59
20161202: 50
20161202: 54
20141206: 71
20161202: 44
20161202: 37
20141206: 90
20141206: 72
20141206: 48
20141206: 36
20141206: 98
20141206: 182
20131031: 478
20131031: 102
20131031: 1566
20151202: 115
20131031: 715
20131031: 217
20131031: 206
20131031: 190
20131031: 180
20141206: 682
20151202: 143
20131031: 49
20141206: 72
20151202: 718
20131031: 115
20141206: 101
20151202: 137
20141206: 86
20151202: 74
20151202: 105
20151202: 1622
20141206: 39
20151202: 3356
20141206: 72
20151202: 120
20141206: 83
20141206: 125
20141206: 865
20141206: 73
20141206: 415
20161202: 45
20131031: 128
20161202: 59
20131031: 703
20161202: 63
20131031: 142
20161202: 37
20131031: 758
20131031: 135
20131031: 187
20131031: 727
20131031: 174
20161202: 46
20141206: 41
20161202: 79
20161202: 117
20161202: 30
20131031: 122
20161202: 27
20131031: 349
20141206: 73
20141206: 23
20141206: 31
20141206: 1103
20131031: 335
20161204: 62
20161204: 39
20161202: 19
20161204: 48
20161202: 17
20161204: 82
20161202: 14
20161204: 41
20131031: 196
20161204: 65
20161204: 23
20161204: 27
20161202: 30
20161202: 36
20161202: 70
20161202: 41
20161202: 47
20161202: 27
20161202: 61
20161204: 32
20151206: 78
20151206: 48
20161204: 52
20161204: 36
20141031: 43
20161204: 39
20141031: 108
20161204: 23
20161204: 31
20161204: 52
20161204: 39
20161204: 43
20161204: 38
20161204: 32
20161204: 66
20141031: 146
20141031: 84
20141031: 1741
20161204: 44
20161204: 28
20161204: 39
20141031: 69
20161204: 47
20141031: 88
20161204: 49
20141031: 564
20161204: 39
20141031: 589
20161204: 13
20141031: 55
20161204: 39
20141031: 31
20161204: 70
20141031: 255
20161204: 53
20151202: 472
20151202: 100
20151206: 35
20151202: 99
20151202: 129
20151206: 67
20151202: 120
20151206: 46
20151202: 81
20151206: 429
20151202: 103
20151206: 54
20151202: 84
20151202: 127
20151202: 471
20151206: 70
20151206: 59
20151206: 43
20151202: 1012
20151206: 56
20151206: 36
20151206: 30
20151202: 170
20151202: 108
20151202: 108
20151202: 132
20151206: 85
20151202: 1604
20151206: 37
20151202: 197
20151206: 36
20141206: 504
20151206: 40
20151202: 144
20151202: 100
20151202: 143
20151206: 44
20151206: 145
20151206: 52
20151206: 45
20151206: 99
20151206: 334
20151206: 106
20151206: 48
20151206: 28
20151206: 38
20151206: 730
20151206: 29
20151209: 261
20131203: 30037
20131207: 309
20151209: 39
20131203: 40848
20131207: 227
20151209: 28
20131203: 29503
20131207: 506
20151209: 22
20131203: 26749
20131207: 146
20131203: 18813
20131207: 277
20151208: 50
20131203: 16414
20131207: 185
20151209: 51
20151208: 42
20131203: 8371
20131207: 472
20151208: 17
20131207: 434
20131203: 5845
20131207: 509
20131203: 9381
20131207: 895
20151208: 51
20131203: 3184
20131207: 445
20151208: 56
20131203: 3758
20151206: 88
20131207: 337
20151209: 52
20131203: 2788
20151209: 766
20131203: 3133
20151209: 38
20131203: 3719
20151209: 44
20131203: 3062
20151209: 68
20151209: 52
20151209: 42
20131203: 3758
20131203: 1235
20131203: 1208
20151209: 52
20151209: 22
20151209: 34
20131207: 413
20151209: 51
20131203: 4854
20131207: 1212
20151208: 58
20151208: 38
20151208: 114
20131207: 2224
20151208: 46
20131207: 4042
20131207: 7826
20131207: 786
20151208: 52
20131207: 2057
20151208: 31
20151208: 35
20131203: 4934
20151208: 38
20151208: 57
20151208: 57
20151208: 15
20131205: 1892
20131205: 1310
20131205: 841
20131205: 2601
20131205: 1557
20131205: 941
20131205: 2336
20131205: 3640
20131205: 3392
20151208: 31
20131203: 4562
20131207: 234
20151208: 50
20131203: 2828
20131207: 528
20151208: 29
20131203: 7092
20131207: 953
20151208: 81
20131203: 3406
20131203: 8108
20131207: 1051
20131203: 8976
20131207: 2299
20131203: 7713
20131207: 1246
20131203: 6466
20131207: 304
20131203: 28971
20131207: 912
20151208: 25
20131203: 54477
20131207: 1162
20151208: 25
20131203: 39644
20131207: 1232
20151208: 46
20131207: 3167
20151208: 57
20151208: 53
20151208: 39
20151208: 53
20131205: 3310
20131205: 4722
20131205: 2032
20131205: 4610
20131205: 1281
20131101: 153
20141205: 158
20131101: 191
20141205: 76
20131101: 280
20141205: 72
20131101: 128
20131101: 97
20131101: 55
20141205: 57
20161205: 30
20161205: 48
20161205: 49
20161205: 10
20161205: 49
20161205: 37
20131101: 2066
20161205: 76
20131101: 44
20161205: 51
20131101: 834
20161205: 42
20161205: 14
20161205: 19
20141205: 91
20161205: 37
20141202: 50
20161205: 55
20161205: 29
20141202: 138
20161205: 38
20141202: 115
20141202: 147
20141202: 230
20141202: 147
20141202: 305
20151208: 42
20151208: 56
20151208: 41
20151208: 52
20141202: 296
20141205: 65
20141205: 119
20141205: 147
20141205: 80
20141205: 484
20141202: 188
20141202: 190
20141202: 73
20141202: 63
20141202: 68
20141202: 106
20141202: 100
20141202: 410
20141202: 90
20141202: 993
20141205: 47
20141205: 39
20141205: 101
20141205: 449
20161205: 52
20161205: 28
20141202: 341
20161205: 21
20141202: 324
20161205: 31
20161205: 50
20141202: 98
20161205: 57
20141202: 717
20161205: 31
20161205: 49
20141202: 122
20161205: 76
20141202: 147
20161205: 55
20161205: 64
20141205: 104
20141205: 152
20141205: 82
20141205: 43
20141205: 106
20131208: 208
20151205: 118
20151205: 210
20151205: 155
20151205: 117
20141208: 47
20141208: 51
20141208: 47
20141208: 37
20131208: 126
20141208: 32
20131208: 172
20151205: 61
20151205: 44
20151205: 2412
20151205: 52
20151205: 93
20151205: 91
20151205: 65
20151205: 80
20151205: 526
20151205: 83
20151205: 117
20151205: 130
20151205: 175
20151205: 38
20151205: 54
20161203: 40
20131208: 662
20131208: 704
20131101: 119
20131208: 2445
20161203: 27
20141208: 54
20161203: 37
20161203: 55
20141208: 56
20161203: 38
20141208: 42
20161203: 50
20161203: 548
20161203: 41
20161203: 41
20131101: 68
20141208: 20
20141208: 27
20161203: 29
20141208: 61
20161203: 187
20141208: 56
20141208: 43
20141208: 205
20141208: 47
20141208: 49
20131101: 105
20131208: 218
20131101: 76
20131208: 333
20131101: 240
20131208: 374
20131101: 368
20131208: 283
20131101: 157
20131208: 462
20131101: 122
20131208: 462
20131101: 117
20131208: 302
20131101: 275
20131208: 1115
20151101: 102
20151101: 83
20151101: 61
20151101: 110
20131101: 523
20131208: 311
20131208: 473
20161203: 37
20161203: 32
20161203: 35
20141208: 51
20161203: 63
20161203: 39
20141208: 595
20161203: 58
20151101: 1402
20141208: 33
20161203: 28
20151101: 50
20161203: 51
20151101: 64
20161203: 26
20151101: 32
20161203: 31
20151101: 27
20161203: 57
20141208: 32
20131101: 575
20141208: 33
20131101: 146
20131208: 943
20141208: 40
20141208: 28
20141208: 100
20141208: 29
20141208: 40
20131101: 940
20131208: 4483
20131101: 107
20131208: 247
20131101: 149
20131208: 502
20131101: 142
20131208: 916
20131101: 135
20131208: 1611
20131101: 100
20131208: 240
20131101: 379
20131208: 505
20131101: 103
20131208: 110
20151101: 41
20131205: 1220
20151101: 45
20131205: 2499
20151101: 178
20131205: 747
20151101: 31
20131205: 1621
20131205: 826
20131205: 1938
20151101: 126
20151101: 46
20151101: 30
20151101: 29
20151101: 168
20151101: 70
20141101: 152
20141101: 134
20141101: 60
20141101: 743
20141101: 156
20131205: 929
20141101: 356
20141101: 271
20141101: 409
20131205: 2853
20141101: 44
20131205: 1480
20131205: 465
20131205: 333
20151101: 92
20151101: 28
20151101: 40
20131205: 449
20141208: 35
20141208: 65
20131205: 588
20151101: 66
20151101: 59
20151101: 47
20151101: 47
20151101: 29
20151101: 77
20151101: 40
20141208: 39
20131205: 2223
20141208: 87
20131205: 3269
20141204: 103
20131205: 1083
20141204: 131
20141204: 65
20141204: 2
20141204: 58
20141204: 54
20141204: 66
20141101: 84
20141204: 44
20141204: 57
20151209: 61
20151209: 101
20151205: 26
20151209: 30
20151101: 82
20151209: 26
20151209: 59
20151209: 53
20141101: 47
20151209: 64
20141101: 42
20151209: 52
20151209: 56
20151209: 11
20151209: 44
20141101: 70
20141204: 4
20141101: 58
20141101: 156
20141204: 1
20141101: 42
20141101: 50
20141101: 44
20141101: 123
20141101: 91
20151201: 95
20141204: 39
20141204: 42
20141204: 231
20151201: 40
20151201: 153
20151201: 52
20141204: 91
20151201: 29
20151209: 59
20151205: 527
20151201: 46
20151209: 84
20151205: 84
20151201: 39
20151205: 81
20151201: 477
20151201: 78
20151205: 38
20141101: 59
20151205: 50
20141101: 613
20151205: 72
20151205: 48
20141101: 134
20151205: 45
20151205: 45
20151205: 55
20151205: 76
20141101: 137
20141204: 63
20141204: 80
20141101: 87
20141204: 315
20141101: 104
20141101: 41
20141101: 71
20141101: 81
20151209: 11
20141101: 40

Mentions in news, blogs & Google+

Explanation of terms and methodology

  • Sources: Web of Science, CrossRef, Scopus, WebTrends, and Altmetric

    Frequency of updates: In most cases, our metrics data is updated hourly, In some cases, such as page views, the data is not available the first 48 hours after an article is published.

  • Citations

    Single number count for article citations from each service's database (may vary by service). The citations counts are reliant on the availability of the individual APIs from Web of Science, CrossRef, and Scopus. These counts are updated daily once they become available. Once a citation count is available, the list of articles citing this one is accessible by clicking on the circle for that citation source.

  • Page views

    A cumulative count of full-text article views that includes HTML views and PDF downloads. These data reflect only usage on the nature.com journal platform, as tracked by WebTrends tagging, and are only for articles published on or after 1 January 2012. Nature Research content is also available on other third party platforms and in repositories around the world; we are currently not including article usage data from any of these third-party services. The page views data is available 48 hours after online publication and is updated daily.

  • News, blogs and Google+ posts

    The number of times an article has been cited by individual mainstream news sources, blog post, or member of Google+ along with a link to the original article or post. News articles, blog posts and Google+ posts do not always link to articles in a way that can be picked up by aggregators used by Altmetric, so the listed links are not necessarily a reflection of the entire scope of media, blog or Google+ interest. Further, the list of blogs and news sources covered is manually curated by Altmetric and thus is subject to their discretion for inclusion as a scientific blog or media source. The news, blog, and Google+ posts are provided by Altmetric and are updated hourly.

  • Altmetric score

    Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention and the number in the centre is the Altmetric score. The score is calculated based on two main sources of online attention: social media and mainstream news media. Altmetric also tracks usage in online reference managers such as Mendeley and CiteULike, but these do not contribute to the score. Older articles will typically score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for articles of a "similar age" (published within 6 weeks of either side of the publication date of this article).

    For a more detailed description of Altmetric, the Altmetric score, and sources used, please see Altmetric's information page.

  • Twitter demographics

    Provides the number of tweets broken down by country of origin for the Twitter account. The geographic breakdown for the twitter sources is provided by Altmetric and is updated hourly.

Additional data