Stimulating venereal disease morbidity reporting by private physicians; follow-up of positive serologic test reports.
D035843:Biomedical Research; D005500:Follow-Up Studies; D006801:Humans; D009017:Morbidity; D012698:Serologic Tests; D012749:Sexually Transmitted Diseases / Q000517:prevention & control*
VENEREAL DISEASES/prevention and control