Hereditary factors in venous insufficiency.
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005796:Genes; D005808:Genes, Recessive; D006801:Humans; D007866:Leg / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014648:Varicose Veins / Q000235:genetics*