Does it Need to Adjust Maternal Serum Markers for Down's Syndrome in Twin Pregnancies after Conventional IVF or ICSI?

Song, I.O. (Division of Reproductive Endocrinology and Infertility, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University) ;
Cha, S.W. (Division of Reproductive Endocrinology and Infertility, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University) ;
Shin, J.S. (Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University) ;
Han, J.Y. (Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University) ;
Kang, I.S. (Division of Reproductive Endocrinology and Infertility, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University) ;
Koong, M.K. (Division of Reproductive Endocrinology and Infertility, Samsung Cheil Hospital, School of Medicine, Sungkyunkwan University)