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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
The horizontal fraction bar was introduced by the Arabs.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).