title: Serum placental lactogen in mice in relation to day of gestation and number of conceptuses.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D005260:Female; D051379:Mice; D010928:Placental Lactogen / Q000097:blood*; D011247:Pregnancy; D011270:Pregnancy, Animal; D011272:Pregnancy, Multiple; D011388:Prolactin / Q000097:blood; D011869:Radioligand Assay; D013997:Time Factors
chemical_list: D011388:Prolactin; D010928:Placental Lactogen