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The case for the energy density of foods being an important factor in regulating short-term food intake is strong (1–4). The results of classic studies of food intake in organisms ranging from blow...
The conflicting evidence of the relation between b-carotene and lung cancer in humans serves as a poignant case study with respect to what types of evidence are sufficient to support or change a nu...
The role of nutritional epidemiology studies in the development of nutritional recommendations has been controversial, in part because individual studies supporting either side of a given issue can...
Dietary supplements, used widely by Americans, are regulated by the Dietary Supplement Health and Education Act of 1994 (1), an amendment to the Federal Food, Drug and Cosmetic Act. The Dietary Sup...
Gallstones are a highly prevalent condition; however, the nutritional and lifestyle risk factors of this disease are not well understood.
Introduction: The introduction of highly active antiretroviral therapy (HAART), in 1996, has resulted in marked reductions in the rate of illness and death, due to HIV infection. The HAART has transfo...
Background: Shift work is a well-recognized occupational health hazard in both industrialized and industrially developing countries. Prolonged working time, day/night shift rotation, circadian rhythm ...
Background: Nutritional factors play an important role in cataract disease and the healthy eating index (HEI) is a unique approach to study the relationships between diet and diseases.
Introduction: One of the highly toxic mushrooms that are common in the northwest region of Iran is Amanita phalloides, which might result in renal or liver failure.
Throughout the United States, consumers rely on local health authorities to regulate and inspect restaurants in an attempt to assure that high-quality hygiene standards are maintained.
Acute disseminated encephalomyelitis (ADEM) is an uncommon inflammatory demyelinating disease of the central nervous system. The disease typically occurs after infections or vaccinations. However, in ...
Background: Whether vitamin supplements decrease venous thrombosis risk is controversial. Previous reports did not all take confounding fully into account, either by randomization or by extensive adju...
Background: Hospitals are the most costly and important components of any health care system, so it is important to know their economic values, pay attention to their efficiency and consider factors a...
Background:: Inequality in households’ and individuals' consumption expenditures is one of the most important aspects of health status difference among households and individuals.
Background:: Applying Prevention and Control of Infection (PCI) standards in hospitals reduces probable risks to patients, staff and visitors; it also increases efficiency, and ultimately improves pro...

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