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March 12, 1910

Diagnostic Methods. Chemical, Bacteriologic and Microscopic.

JAMA. 1910;LIV(11):905. doi:10.1001/jama.1910.02550370075030

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The author has succeeded in giving a practical exposition of laboratory diagnostic methods, including many which are not ordinarily found in such books, as for instance, the methods of examining the secretions of the nose and conjunctiva. The section of the blood is especially complete. Along with the methods described, the author has endeavored —and successfully—to present sufficient physiologic and clinical facts to enable just conclusions as to the value and bearing of the various methods on diagnosis; and in some places he has not hesitated to express his very decided opinion of the unavailability of some modern methods, especially, for instance, the methods of determination of the functional capacity of the kidney. Cryoscopy, electric conductivity, and the methylene blue tests are unhesitatingly condemned. Webster regards the phloridzin test as the best one advanced which can in any way aid the diagnosis. He concludes that for the medical man these

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