Content-type: text/application/x-research-info-systems

Provider: Nature Publishing Group
Content: application/x-research-info-systems
TY  - JOUR
AU  - Levin, Kate Ann
TI  - Study design III: Cross-sectional studies
JA  - Evid-based Dent
PY  - 0000///print
VL  - 7
IS  - 1
SP  - 24
EP  - 25
SN  - 1462-0049
UR  - http://dx.doi.org/10.1038/sj.ebd.6400375
ER  -