[Serum levels of human placental lactogen in normal pregnancy].
D000906:Antibodies / Q000032:analysis; D005260:Female; D005865:Gestational Age; D006801:Humans; D010928:Placental Lactogen / Q000097:blood*; D011247:Pregnancy; D011863:Radioimmunoassay; D013997:Time Factors
D000906:Antibodies; D010928:Placental Lactogen