title: Step-like DRL schedule change effects on blood chemistry, leukocytes and tissue in rats.
mesh_terms: D000818:Animals; D001774:Blood Chemical Analysis; D001798:Blood Proteins / Q000378:metabolism; D001835:Body Weight; D003216:Conditioning, Operant / Q000502:physiology*; D005508:Food Deprivation / Q000502:physiology; D007958:Leukocyte Count; D008297:Male; D009929:Organ Size; D051381:Rats; D012055:Reinforcement Schedule
chemical_list: D001798:Blood Proteins