Lindberg, B S Human placental lactogen (HPL) levels in abnormal pregnancies. [electronic resource] - The Journal of obstetrics and gynaecology of the British Commonwealth Dec 1973 - 1046-53 p. digital Publication Type: Journal Article ISSN: 0022-3204 Standard No.: 10.1111/j.1471-0528.1973.tb02978.x doi Subjects--Topical Terms: Antibody FormationApgar ScoreBirth WeightErythroblastosis, Fetal--bloodFemaleFetal Death--bloodFetal Diseases--bloodHumansHypertension--bloodInfant MortalityInfant, NewbornPlacental Lactogen--bloodPre-Eclampsia--bloodPregnancyPregnancy Complications--bloodPregnancy Complications, Cardiovascular--bloodPregnancy in Diabetics--bloodRadioimmunoassayRh-Hr Blood-Group SystemTime Factors