Aetiology of varicosity.
D001902:Botswana; D006801:Humans; D005082:Physical Exertion; D011183:Postoperative Complications / Q000453:epidemiology; D011655:Pulmonary Embolism / Q000453:epidemiology; D014648:Varicose Veins / Q000453:epidemiology / Q000209:etiology*