Letter to the Editor: Is There a Retrospective Random Control Study?
a Graduate School of Medicine, Seoul National University , Republic of Korea.
Yong Xun
YX
Kim
D064592:Autografts; D003228:Conjunctiva; D006801:Humans; D011625:Pterygium; D012189:Retrospective Studies; D014182:Transplantation, Autologous