1. Syncope from effort in aortic stenosis: frequency and diagnosis;Gallavardin;Arch. mal. coeur,1937
2. Clinical observations upon syncope and sudden death in relation to aortic stenosis;Marvin;Am. Heart J.,1935
3. Clinical observations on aortic stenosis;McGinn;Am. J. M. Sc.,1934
4. Fainting. Physiologic and Psychologic Considerations;Engel,1950
5. Syncope and related syndromes;Weiss;Oxford Med.,1935