title: Physiological changes associated with changing fixed ratio schedules in rats.
mesh_terms: D000818:Animals; D001772:Blood Cell Count; D001786:Blood Glucose / Q000032:analysis; D003216:Conditioning, Operant; D004804:Eosinophils; D005243:Feces / Q000032:analysis; D005247:Feeding Behavior; D005260:Female; D008297:Male; D009929:Organ Size; D051381:Rats / Q000502:physiology*; D012055:Reinforcement Schedule; D013950:Thymus Gland / Q000033:anatomy & histology; D013961:Thyroid Gland / Q000033:anatomy & histology; D013997:Time Factors
chemical_list: D001786:Blood Glucose