Since the publication of earlier position statements by the American College of Occupational and Environmental Medicine (ACOEM), the diagnosis, treatment and etiologic assessment of multiple chemical sensitivities (MCS) has remained a troublesome medical and social concern for individuals, physicians, government, and organizations. First described in 1952, the syndrome has engendered over 20 names, including "environmental illness, total allergy syndrome, 20th century disease, and chemical AIDS." These terms refer to complaints of patients who report recurrent nonspecific symptoms referable to multiple organ systems that the sufferers believe are provoked by exposure to low levels of chemical, biologic, or physical agents. No consistent physical findings or laboratory abnormalities have yet been found to differentiate MCS patients from the remainder of the population.
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