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Higher cardiovascular mortality has been associated in a single epidemiological study with higher levels of barium in drinking water. The purpose of this study was to determine whether drinking water barium at levels found in some U.S. communities alters the known risk factors for cardiovascular disease. Eleven healthy men completed a 10-week dose-response(More)
BACKGROUND We investigated associations of known breast cancer risk factors with breast density, a well-established and very strong predictor of breast cancer risk. METHODS This nested case-control study included breast cancer-free women, 265 with high and 860 with low breast density. Women were required to be 40-80 years old and should have a body mass(More)
Animal studies and a single human epidemiological study have suggested that chlorine in drinking water may raise the level of blood cholesterol. The purpose of this study was to determine whether a 4-week exposure to drinking water chlorine (1.5 L per day) at a concentration of 20 ppm (ppm = mg/L) under controlled conditions would alter circulating(More)
Atherosclerosis with its complications is the most important health problem affecting American adults. The levels of serum cholesterol, of high and low density lipoproteins, and of apolipoproteins A1, A2, and B are major risk factors for the development of atherosclerotic lesions. Animal studies suggest that chlorinated drinking water may elevate the serum(More)
The purpose of this study was to determine whether a 4-week consumption of 1.5L per day of drinking water containing monochloramine at a concentration of 2 ppm (ppm = mg/L) or 15 ppm under controlled conditions would alter parameters of lipid or thyroid metabolism in healthy men. Forty-eight men completed an 8-week protocol during which diet (600 mg(More)
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