title: Estrogen and brood pouch formation in the marsupial frog, Gastrotheca riobambae.
mesh_terms: D000818:Animals; D001001:Anura / Q000502:physiology*; D004958:Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D007274:Injections, Intraperitoneal; D012867:Skin / Q000033:anatomy & histology* / Q000187:drug effects
chemical_list: D004958:Estradiol