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December 20, 1919


JAMA. 1919;73(25):1897. doi:10.1001/jama.1919.02610510035029

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To the Editor:  —In view of the comment on the desirability of standardizing certain laboratory procedures in the interest of uniformity of interpretations (The Journal, Dec. 6, 1919, p. 1773), readers will be interested in knowing that the Laboratory Section of the American Public Health Association has, for the past fifteen years, had committees on standard methods for various public health laboratory procedures. The more active of these have been the committees on the bacteriologic and chemical examinations of water and sewage, and on the examination of milk, of shell-fish, and of air. There have also been committees on the bacteriologic diagnosis of various diseases and on the making of various biologic products.The work of these committees has been of great value. The report of the Committee on Standard Methods of Water Analysis has been rather generally adopted by water laboratories throughout the country.The existence of standard methods

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