Which of the following statements is true about the prescribing practices of physicians?

D
Even though most physicians claim to place little weight on drug advertisements, pharmaceutical representatives, and patient preference and state that they rely on academic sources for drug information, a study showed that commercial rather than scientific sources of drug information dominated their drug information materials. Younger physicians tend to prescribe fewer and more appropriate drugs. Antibiotics have dropped out of the top five classifications of drugs prescribed. Most physicians have a therapeutic armamentarium of about 144 drugs.