| http://www.w3.org/ns/prov#value | - Fragrances are common allergens and repeated exposures can lead to onset of allergies, including symptoms such as skin and respiratory tract irritation, headache and watery eyes, says Dr. Harvey Karp, a Los Angeles pediatrician and assistant professor of medicine at UCLA. A family of chemicals known as phthalates, used in synthetic fragrances, have been found to produce cancer of the liver and b
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