Exercise, hypophysectomy, and spleen weight.
D000818:Animals; D004027:Diencephalon / Q000502:physiology; D005725:Ganglia, Autonomic; D013006:Growth Hormone / Q000494:pharmacology; D007016:Hypophysectomy; D007106:Immune Sera; D009929:Organ Size; D005082:Physical Exertion; D051381:Rats; D013154:Spleen; D014628:Vagotomy
D007106:Immune Sera; D013006:Growth Hormone