Define the risk groups on which current recommendations for cervical carcinoma screening are based. Recommendations concerning periodic screening of women in the U.S. using Pap smears (Papanicolaou-Traut smears) have been developed for the various risk groups. Low-risk groups are those women who have never had sexual activity, have had a hysterectomy for nonmalignant reasons, or [...]

Who gets esophageal cancer? Squamous cell cancer of the esophagus occurs in the 40- to 60-year-old age group and is seen mainly in men. The incidence is increased in Africa, China, Russia, Japan, Scotland, and the Caspian region of Iran. In the U.S. the nonwhite male population is at increased risk. Adenocarcinoma of the esophagus [...]