we correlated the villous histology with the immunocytochemical distribution of four trophoblastic proteins : beta human chorionic gonadotropin ( beta hcg ) , placental alkaline phosphatase ( plap ) , pregnancy specific beta-1-glycoprotein ( sp1 ) , and human placental lactogen ( hpl ) in 14 third-trimester placentas associated with diabetes mellitus .
C0106132
beta human
C0032043
placentas