Publisher: BMJ Publishing Group Ltd Country of Publication: England NLM ID: 101552874 Publication Model: Electronic Cited Medium: Internet ISSN: 2044-6055 (Electronic) Linking ISSN: 20446055 NLM ISO Abbreviation: BMJ Open Subsets: MEDLINE
Publisher: Chinese Medical Association Country of Publication: China NLM ID: 16210540R Publication Model: Print Cited Medium: Print ISSN: 0412-4081 (Print) Linking ISSN: 04124081 NLM ISO Abbreviation: Zhonghua Yan Ke Za Zhi Subsets: MEDLINE