[填空题]

Most doctors in a recent survey said that annual physical examinations were effective with 1. ______
detecting illness in apparently healthy patients, even there is little scientific evidence 2. ______
to support the exams. The report found that physicians are largely unaware that 3. ______
current federal government guidelines did not recommend annual exams for healthy adults
with symptoms. The study also suggested that in performing annual physicals many physicians 4. ______
routinely order screening tests that had not been proved useful for patients with no symptoms. 5. ______
Sixty-five percent of 783 physicians who completed a questionnaire maintained that 6. ______
an annual physical was necessary, and 55 percent believed that annual physicals for healthy
adults were recommended by national organizations. The researchers found that even
many a doctors who were aware