Zhang, X T [New infectious diseases: occurrence and preventive strategies]. [electronic resource] - Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi Oct 1997 - 306-8 p. digital Publication Type: Journal Article; Review ISSN: 0254-6450 Subjects--Topical Terms: Acquired Immunodeficiency Syndrome--epidemiologyChina--epidemiologyCholera--epidemiologyCommunicable Disease ControlCommunicable Diseases--epidemiologyHumans