title: Cholecystokinin and substance P immunoreactivity in retinas of rats, frogs, lizards and chicks.
mesh_terms: D000818:Animals; D002645:Chickens; D002766:Cholecystokinin / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D008116:Lizards; D009474:Neurons / Q000032:analysis; D011894:Rana pipiens; D051381:Rats; D012160:Retina / Q000032:analysis*; D013373:Substance P / Q000032:analysis*
chemical_list: D013373:Substance P; D002766:Cholecystokinin