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Platelets and the process of blood clot formation.
Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants.
Varicella or chickenpox, a viral skin infection. In this photograph, the rash is beginning to form s
Sample new patient registration form.
Walking is one form of exercise that is safe for most pregnant women
Ferns disperse by releasing spores that form on the underside of leaves.