title: Serum immunoreactive relaxin concentrations in human pregnancy, labor and the puerperium.
mesh_terms: D003338:Corpus Luteum / Q000378:metabolism; D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D007774:Lactation; D049590:Postpartum Period; D011247:Pregnancy; D012065:Relaxin / Q000097:blood* / Q000378:metabolism
chemical_list: D012065:Relaxin