McLeod F N, McCoy D R
Br J Obstet Gynaecol. 1981 Jul;88(7):774-5. doi: 10.1111/j.1471-0528.1981.tb01283.x.
During the birth of monoamniotic twins the second twin's cord was divided after the birth of the first twin's head. Both infants survived. Division of a cord around the neck of a first twin should be avoided wherever possible.
单羊膜囊双胎分娩时，第二个胎儿的脐带在第一个胎儿头部娩出后切断。两个婴儿均存活。应尽可能避免切断第一个胎儿颈部的脐带。
