title: Plasma levels of progesterone and oestrogen in the pregnant guinea-pig.
mesh_terms: D000818:Animals; D004967:Estrogens / Q000097:blood*; D004971:Estrus; D005260:Female; D006168:Guinea Pigs; D007743:Labor, Obstetric; D010053:Ovary / Q000378:metabolism; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000096:biosynthesis / Q000097:blood*; D011485:Protein Binding; D013997:Time Factors
chemical_list: D004967:Estrogens; D011374:Progesterone