title: Retention of rapid onset of maternal behavior during pregnancy in primiparous rats.
mesh_terms: D000818:Animals; D005260:Female; D008425:Maternal Behavior; D008568:Memory / Q000502:physiology*; D010298:Parity; D011247:Pregnancy; D011270:Pregnancy, Animal; D011374:Progesterone / Q000502:physiology; D051381:Rats; D011930:Reaction Time; D012153:Retention, Psychology / Q000502:physiology*
chemical_list: D011374:Progesterone