Elderly men as caretakers of wives.
D000368:Aged; D003858:Dependency, Psychological; D006233:Persons with Disabilities; D005260:Female; D006167:Guilt; D006701:Home Nursing / Q000523:psychology*; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D009735:Nursing Homes; D012380:Role; D012847:Single Person / Q000523:psychology