引用本文: | 2019年4月中国甲乙丙类传染病疫情动态概要[J]. 疾病监测, 2019, 34(5): 380-380. DOI: 10.3784/j.issn.1003-9961.2019.05.002 |
Citation: | Summary of National Data of Class A, B and C Communicable Diseases in China, April 2019[J]. Disease Surveillance, 2019, 34(5): 380-380. DOI: 10.3784/j.issn.1003-9961.2019.05.002 |