CJCP     2017 19 (5):  583-589    ISSN: 1008-8830  CN: 43-1301/R Immunoprotective effect of combined pneumococcal endopeptidase O and pneumococcal surface adhesin A vaccines against Streptococcus pneumoniae infection ZHANG Jing, CUI Ya-Li, JIANG Yong-Mei Department of Clinical Laboratory, West China Second University Hospital, Sichuan University/Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Chengdu 610041, China Received: 2016-11-23  Revised: 2017-04-06  Online: null Supporting info