title: Quantitative changes in myometrial activity in the guinea-pig during pregnancy.
mesh_terms: D000818:Animals; D003338:Corpus Luteum / Q000502:physiology; D003656:Decidua / Q000502:physiology; D004971:Estrus; D005260:Female; D006168:Guinea Pigs; D008297:Male; D009130:Muscle, Smooth / Q000502:physiology*; D010121:Oxytocin / Q000494:pharmacology; D011247:Pregnancy; D011270:Pregnancy, Animal; D011312:Pressure; D011374:Progesterone / Q000494:pharmacology; D014599:Uterus / Q000187:drug effects / Q000502:physiology*
chemical_list: D011374:Progesterone; D010121:Oxytocin