The epidemiologic evidence for a relationship between social support and health.
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E. Wagner | V. Schoenbach | S. Gehlbach | W. Broadhead | B. H. Kaplan | G. Tibblin | S. James | R. Grimson | B H Kaplan | E H Wagner | V J Schoenbach | S H Gehlbach | E. H. Wagner | R. Grimson | S. Heyden | G Tibblin | S Heyden | W E Broadhead | S A James | R Grimson | B. Kaplan | Sherman A. James | Siegfried Heyden