David R. Rudy

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An estimated 129,400 new cases of colorectal cancer occurred in the United States during 1999. The lifetime risk of developing this cancer is 2.5 to 5 percent in the general population but two to three times higher in persons who have a first-degree relative with colon cancer or an adenomatous polyp. Between 70 and 90 percent of colorectal cancers arise(More)
BACKGROUND A cataract is any opacity or partial loss of transparency of the lens, whether the absence of transparency is small or complete. Pupil dilation affords a view of a legion of internal variations and abnormalities of the human crystalline lens which often tell us about its events and insults, as well as when in the patient's life these might have(More)
Annually vaccinated Air National Guard members were surveyed by return of questionnaire in 1991 (20.5%) and in 1992 by random phone survey (23.5%). By returned questionnaire the sample reported any side effects at the rate of 48.1%; by randomly telephoned sample a significantly lower rate, 37.7% (p < 0.02), was reported. An inverse relationship existed(More)