The effect of environmental stimulation on brain weight in previously undernourished rats.
D000818:Animals; D000831:Animals, Newborn; D001835:Body Weight; D001921:Brain / Q000254:growth & development*; D009748:Nutrition Disorders / Q000523:psychology*; D009929:Organ Size; D051381:Rats; D012931:Social Environment; D012934:Social Isolation