1. The chair and venous thrombosis;Dexter;Tr Am Clin & Climatol A,1973
2. Vascular catheters, smooth and rough;Judkins;New England J Med,1972
3. Lung problems can follow inferior vena cava ligation;Piccone;JAMA,1970
4. Prevention of thromboembolism;Sharnoff;Bull New York Acad Med,1973