Health professionals' use of drug information centers.
D001291:Attitude of Health Personnel; D003157:Community Pharmacy Services / Q000706:statistics & numerical data; D004346:Drug Information Services / Q000706:statistics & numerical data*; D006801:Humans; D007255:Information Services / Q000706:statistics & numerical data*; D010595:Pharmacists; D010820:Physicians; D014481:United States