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To the Editor:
—I was much pleased with the kind words concerning my paper on diagnosis of chickenpox and smallpox quoted in "Prevention is Greater than Cure" (Therapeutics, The Journal, March 13, 1915, p. 907). I note, however, an error in the fourth paragraph of the first column on page 908, fourteenth line, in that it states that the margins of the lesions are not crenated in either disease, thus furnishing no diagnostic point in this particular direction.The fact is that the lesions of chickenpox are crenated, while those of smallpox are not, hence affording one differential point.
Hill HW. Diagnosis of Chickenpox and Smallpox. JAMA. 1915;LXIV(14):1181. doi:10.1001/jama.1915.02570400063029