Social networks, health beliefs, and preventive health behavior.
D000328:Adult; D001294:Attitude to Health; D001519:Behavior; D005260:Female; D006296:Health Services / Q000706:statistics & numerical data*; D006801:Humans; D007087:Illinois; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D012959:Socioeconomic Factors