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Tetanus and diphtheria immunity in an elderly population in Los Angeles County. B P Weiss , M A Strassburg and J C Feeley Fifty-four per cent of 246 subjects attending senior citizen centers (mean age 69), and 29 per cent of 111 convalescent hospital subjects (mean age 82) had protective levels...
Traveler's diarrhea at sea: two multi-pathogen outbreaks caused by food eaten on shore visits. R L Berkelman , M L Cohen , J Yashuk , T Barrett , J G Wells and P A Blake In 1976 and 1981, two outbreaks of gastrointestinal illness aboard cruise ships occurred within 24 hours following onshore...
Patterns of vitamin C intake from food and supplements: survey of an adult population in Alameda County, California. L R Shapiro , S Samuels , L Breslow and T Camacho Use of vitamin C in food and pills and its association with health habits and health status were investigated in a random sample...
Reassurance through prenatal diagnosis and willingness to bear children after age 35. K J Roghmann and R A Doherty This study reports on a survey of 2,209 women age 25-45; most were married. Respondents were asked about their reproductive plans and whether prenatal reassurance might influence...
Paraquat and marijuana: epidemiologic risk assessment. P J Landrigan , K E Powell , L M James and P R Taylor In March 1978, 13 (21 per cent) of 61 marijuana samples from the southwestern United States were found to be contaminated with the herbicide paraquat, a pulmonary toxin, in concentrations...
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