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四川阿坝县城中小学生１９７９年与１９９３年蛔虫感染调查比较四川阿坝县卫生防疫站阿坝６２４０００任光华我县位于四川省西北部，海拔３２００米，北纬３２°，东经１０１°，气候干燥寒冷，无霜期短，是一个以藏族为主的汉、藏、回杂居县。１９７９年及１９９３年，进...
Survey of Ascaris Infection in 1979 and 1993 in Aba County, Sichuan Province Aba County Health and Epidemic Prevention Station Aba 624000 Ren Guanghua Our county is located in the northwest of Sichuan Province at 3200 meters above sea level with an elevation of 32 ° and an east longitude of 101 °. The climate is dry and cold with short frost-free period , Is a Tibetan-based Han, Tibetan, back to the county. 1979 and 1993, into ...