On the alert for deep-vein blood clots.  Clots that form in a leg or arm vein can be deadly; prevention is key.
D006801:Humans; D011655:Pulmonary Embolism / Q000188:drug therapy / Q000209:etiology / Q000517:prevention & control*; D012307:Risk Factors; D020246:Venous Thrombosis / Q000188:drug therapy / Q000209:etiology / Q000517:prevention & control*