title: EXPERIENCE WITH A PERFORMANCE CONTROL PROGRAM IN SYPHILIS SEROLOGY.
mesh_terms: D000941:Antigens; D003168:Complement Fixation Tests; D006801:Humans; D007202:Indicators and Reagents; D013587:Syphilis; D013588:Syphilis Serodiagnosis
chemical_list: D000941:Antigens; D007202:Indicators and Reagents
keywords: ANTIGENS; COMPLEMENT FIXATION TESTS; INDICATORS AND REAGENTS; SYPHILIS SERODIAGNOSIS