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970231 Studies on epidemiology and etiology of Lymedisease in China. ZHANG Zhefu(张哲夫), et al. InstitEpidemiol & Microbiol, Prey Med Chin Acad, Beijing,102206. Chin J Epidemiol 1997; 18(1): 8-11. Objective:To explore the epidemiology and etiologyof Lym