Complement component 3, often called C3, is an essential protein of the immune system. This protein plays a vital role in the body’s innate immune system, providing the first line of defense against ...

NORMAL guinea pig serum is the most common source of complement for the complement-fixation test, and may be used fresh or, more commonly, preserved either by freeze-drying or by Richardson's method 1 ...

Julian Prosia, a 31-year-old optometrist in Waterloo, Ontario, was living a healthy life when he and his wife started planning for a baby. Around that time, he started seeing social-media videos ...

CNET has tested hundreds of cordless vacuum models over the years, evaluating their cleaning ability on different surfaces as well as other features and overall performance. Laboratory Technical ...