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To the Editor:
—It has long been evident to me, from contact with medical students, that aortic regurgitation is the most commonly missed of valvular lesions. This belief has been forcibly confirmed and emphasized in recent months in the examination of registrants for military duty. On one of the medical advisory boards of Columbia University I have had referred to me from three local boards a considerable number of registrants with heart murmurs. The number of aortic regurgitant murmurs recognized and recorded is surprisingly small, when it is considered that the examiners on the local boards are no longer students, but practitioners of medicine. These registrants are in over 90 per cent. of instances recorded as having "systolic murmur." Furthermore, the internists examining for other medical advisory boards are having similar experiences. May I therefore be permitted space for a few remarks that may possibly help to acommoner recognition of