serum levels of fetal , placental and maternal hormones and proteins [ alpha-fetoprotein ( afp ) , human chorionic gonadotrophin , human placental lactogen , schwangerschaftsprotein 1 , pregnancy associated plasma protein-a ( papp-a ) , oestradiol-17 beta , progesterone , pregnancy zone protein ] were measured in 108 women with bleeding during the first half of pregnancy .
C0015965
fetal
C0002210
alpha-fetoprotein