Chernev T, Rakhab M A, Ruseva R K, Karag'ozova Zh
Akush Ginekol (Sofiia). 1997;36(3):5-6.
The authors evaluate changes in the incidence and proportion of the life births by plurality in Mothernal Hospital in Sofia between 1991-1995 and compare it with the incidence of multiple births in other countries in the world. The influence of some factors on the incidence of multiple pregnancy are discussed.
作者评估了1991年至1995年期间索非亚妇产医院不同胎次活产的发生率和比例变化，并将其与世界其他国家的多胎出生率进行了比较。文中还讨论了一些因素对多胎妊娠发生率的影响。
