Utilization of a cancer telephone information facility: a comparison of callers and non-caller controls.
D000328:Adult; D000367:Age Factors; D005069:Evaluation Studies as Topic; D005260:Female; D006266:Health Education; D006801:Humans; D007255:Information Services / Q000706:statistics & numerical data*; D008297:Male; D009369:Neoplasms; D012737:Sex Factors; D012959:Socioeconomic Factors; D013689:Telephone