Preventive home visits to elderly people. Their effectiveness cannot be judged by randomised controlled trials.
Clark
J
J
D000368:Aged; D003152:Community Health Nursing / Q000191:economics / Q000379:methods*; D003362:Cost-Benefit Analysis; D006299:Health Services for the Aged / Q000191:economics*; D006792:House Calls; D006801:Humans; D015201:Meta-Analysis as Topic; D011314:Preventive Health Services / Q000191:economics / Q000379:methods*; D006113:United Kingdom