2021 Correction to "The effect of endometrial injury on pregnancy rate in frozen-thawed embryo transfer: A randomized control trial" [Int J Reprod BioMed 2016; 14: 453-458]. International journal of reproductive biomedicine ·doi:10.18502/ijrm.v20i3.10715 [This corrects the article on p. 453 in vol. 14 PMCPMC4971562.].