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In the preface to this study of the differential diagnosis of congenital lesions of the heart with the help of auscultation and phonocardiograph, Dr. Michel quotes Mackenzie's dictum: "I sometimes wonder whether the use of auscultation has not been the means of doing more harm than good," an indication of an attitude of mind that has persisted to the present day. This is regrettable since, in his opinion, the phonocardiograph has been developed to a point where it is widely and routinely used and also because a thorough understanding of the acoustic manifestations of the congenital heart lesions can lead
Angeborene Herzfehler. Auskultation—Phonokardiographie—Differentialdiagnose.. Ann Intern Med. 1964;61:992–993. doi: https://doi.org/10.7326/0003-4819-61-5-992
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Published: Ann Intern Med. 1964;61(5_Part_1):992-993.
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