Simpson, JL, Mills, JL, Holmes, LB
et al. (1988). Low fetal loss rates after ultrasound-proved viability in early pregnancy
.
OBSTETRICAL & GYNECOLOGICAL SURVEY, 43(5), 284-285. 10.1097/00006254-198805000-00006
Simpson, JL, Mills, JL, Holmes, LB et al. (1988). Low fetal loss rates after ultrasound-proved viability in early pregnancy
. OBSTETRICAL & GYNECOLOGICAL SURVEY, 43(5), 284-285. 10.1097/00006254-198805000-00006