title: The A9 study: the longest cohort study in the history of leprosy--an overview.
authors: Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
authors: M Elizabeth
authors: ME
authors: Duncan
mesh_terms: D016022:Case-Control Studies; D002648:Child; D015331:Cohort Studies; D005002:Ethiopia / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D018445:Infectious Disease Transmission, Vertical; D007918:Leprosy / Q000453:epidemiology* / Q000635:transmission; D010523:Peripheral Nervous System Diseases / Q000382:microbiology; D011247:Pregnancy