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To the Editor:—
The subject discussed by Dr. Ronchese in his article "Personal Identification" in the July 28 issue of The Journal is very interesting, and the article itself is excellent. However, in his discussion of the signs, or stigmas, of the various trades and professions I found no reference to the one that often identifies the physician. This consists of an obvious bony swelling over the dorsal surface of the middle phalanx of the middle finger of the left hand, the result of repeated percussion during examinations of patients' hearts and lungs.
Cole F. DOCTORS' MARK. JAMA. 1945;129(12):825. doi:10.1001/jama.1945.02860460049024