机译:2016 - 2017年儿童百日咳儿童百日咳危险因素在中国贵州省贵州省:一个案例对照研究
Guizhou Center for Disease Control and Prevention Institute of Expanded Programme on Immunization Guiyang 550004 China;
Chinese Center for Disease Control and Prevention Center for National Immunizatian Program Beijing 102206 China;
Guizhou Centre for Disease Control and Prevention Institute of Communicable Disease Control and Prevention Guiyang 550004 China;
Guizhou Centre for Disease Control and Prevention Institute of Communicable Disease Control and Prevention Guiyang 550004 China;