Chinese Medical Journal, a publication of Chinese Medical Association, is a peer-reviewed online journal with semi-monthly print on demand compilation of issues published. The journal’s full text is available online at http://www.cmj.org. The journal allows free access (Open Access) to its contents and permits authors to self-archive final accepted version of the articles on any OAI-compliant institutional / subject-based repository.The journal is indexed with Biological Abstracts, Biosis Preview, Chemical Abstracts, Current Contents/Clinical Medicine, DOAJ, Excerpta Medica / EMBASE, MEDLINE/Index Medicus, PubMed, Science Citation Index, Science Citation Index Expanded, Scimago Journal Ranking, SCOPUS and Web of Science.SCI Impact Factor for 2014 is 1.053.Offical web site: www.cmj.orgSubmission address: www.journalonweb.com.cn