title: A multiple choice apparatus based on an air stream design for studies on olfactory discrimination in rodents.
mesh_terms: D000818:Animals; D004192:Discrimination, Psychological; D004864:Equipment and Supplies; D004971:Estrus; D005260:Female; D008297:Male; D010675:Pheromones; D011247:Pregnancy; D051381:Rats; D012726:Sexual Behavior, Animal; D014556:Urine
chemical_list: D010675:Pheromones