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JAMA. 1935;105(4):286-287. doi:10.1001/jama.1935.02760300046013.
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THE EVALUATION OF TESTS FOR SYPHILIS IN STATE AND LOCAL LABORATORIES  During the past year the United States Public Health Service in cooperation with the American Society of Clinical Pathologists and participating serologists published the results of a study undertaken to investigate the relative efficiency of complement fixation and flocculation tests as described by serologists in the United States.1 In determining the relative efficiency of these tests the serologists who originally described the methods were permitted to perform their own tests. The conditions under which the specimens were collected and submitted to the serologists have been published.2 Since the specimens in the original study were examined by the serologists who had described their own methods, or in their laboratories by other specially trained workers, it is possible that the efficiency of the tests may vary considerably when performed by others not so familiar with the details of the

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