Correction to: Scientific Reports https://doi.org/10.1038/s41598-017-01160-1, published online 21 April 2017

This Article contains errors in the first column of Table 1, where the reference numbers are incorrect. All these articles are already referenced in the Article, and the Table with the corrected reference numbers is included below.

In addition, Table 1 contains an error in the ‘Experimental group treatment strategy(alprostadil)’ for the study by Franz RW [11] where,

“oral 200 mg preoperative”

should read:

“oral 200 μg preoperative”

Table 1 The characteristics of included studies. CHD Coronary heart disease; DM diabetes mellitus; CAG coronary angiography; PCI percutaneous coronary intervention; PAG peripheral angiography; PTA percutaneous transluminal angioplasty; CECT contrast-enhanced computerised tomography; M male; F female; NS normal saline; d day; h hour; min minute; iv intravenous injection.