Is bacterial vaginosis a stronger risk factor for preterm birth when it is diagnosed earlier in gestation?
作者
Mark A. Klebanoff,Sharon L. Hillier,Robert P. Nugent,Cora MacPherson,John C. Hauth,J. Christopher Carey,Margaret Harper,Ronald J. Wapner,Wayne Trout,Atef Moawad,Kenneth J. Leveno,Menachem Miodovnik,Baha M. Sibai,J. Peter VanDorsten,Mitchell P. Dombrowski,Mary J. O’Sullivan,Michael W. Varner,Oded Langer