To the Editor.— The article by Rhodes, Holmes, and Clark (238:1641, 1977) referring to transient distribution of primary cancers in the large bowel leaves the readers with an unfortunate implication. It is stated several times that digital examination and proctoscopic examination may not be as important today because of the changing trend in distribution of tumors. I would like to point out that over the past 40 years the incidence of routine proctoscopies and the location and eradication of polyps has become increasingly prevalent. This may be contributing largely to the control of carcinoma and precarcinoma in the area available to the sigmoidoscope and may offer an explanation for the changing pattern. In a study done by myself and others,1 it was shown that in a population whose polyps are being located and treated, the incidence of carcinoma is increased, but the distribution is almost entirely above the reach
Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
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