( Jeenah Sohn ) , ( Hyun Ji Lim ) , ( Sohee Kim ) , ( Tae Hun Kim ) , ( Byoung Jae Kim ) , ( Kyu Ri Hwang ) , ( Taek Sang Lee ) , ( Hye Won Jeon ) , ( Sun Min Kim )대한산부인과학회, Obstetrics & Gynecology Science[2020] 제63권 제5호, 615~622페이지(총8페이지)
( Kyung Ju Lee ) , ( Sangho Sohn ) , ( Vital Statistics Division ) , ( Statistics Korea ) , ( Kwan Hong ) , ( Jin Kim ) , ( Rakhyeon Kim ) , ( Seokmin Lee ) , ( Heejo Youn ) , ( Young Ju Kim )대한산부인과학회, Obstetrics & Gynecology Science[2020] 제63권 제5호, 623~630페이지(총8페이지)