European journal of obstetrics, gynecology, and reproductive biology

Pre-pregnancy or first-trimester risk scoring to identify women at high risk of preterm birth.

European journal of obstetrics, gynecology, and reproductive biology

Baer RJ, McLemore MR, Adler N, Oltman SP, Chambers BD, Kuppermann M, Pantell MS, Rogers EE, Ryckman KK, Sirota M, Rand L, Jelliffe-Pawlowski LL