1. Adams, J. C., Surg. Gyn. Obstetr. 69, 717 (1939).
2. Allen, E. V., W. N. Barkerund E. A. Hrxes, Peripheral Vascular Diseases (Philadelphia-London 1946 ).
3. Atlas, L. N., Surg. Gyn. Obstetr. 77, 136 (1943).
4. Bancroft, F. W., W. Stanley-Brown und R. F. Taylor, Ann. Surg. 111, 874 (1940).
5. Bauer, G., Acta chir. scand. 74 (1942).