1. Peripheral Vascular Diseases;Allen, E.V.; Barker, N.W.; Hines, E.A.;Philadelphia,1947
2. Diseases of the Arteries including Angina Pectoris. Vol;Allbutt, T.C.,1915
3. Bedford, D. E. (1943). Brit. Encycl. Med. Pract. (Rolleston, 1936), 4th Imp., 1943. Vol. I., p. 554.
4. The Principles and Practice of Cardiology;Bramwell, C.; King, J.T.,1942
5. Diseases of the Heart;Cowan, J.; Ritchie, W.T.,1935