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Table 2 Mainland Chinese bibliographic databases (adapted from [23] with some additions and updates).

From: Chinese journals: a guide for epidemiologists

Database
English name Chinese Biomedical Literature Database (CBM) Chinese Medical Current Content (CMCC) China National Knowledge Infrastructure (CNKI-CAJ) VIP information/ Chinese Scientific Journals Database Wan Fang database iLib Google Scholar
Chinese name -
Chinese interface [12] [13] [14] [16] [17] [19] [22]
English interface - - [15] - [18] Same as Chinese interface [21]
Developer IMICAMS Medical Library, Chinese PLA† Tsinghua University cqvip.com Inc. Wanfang Data Inc. Wanfang Data Inc. Google
Coverage
Journals 1600+ 1400+ 1000+ * 1818* 1024+ * (sharing the same database as Wan Fang database) Unclear (as supplied by VIP, Wan Fang and iLib)
Articles 3,000,000 (including proceedings and theses) 2,700,000 3,308,164 2,900,000+ 8,896,299 (as of 4 Jan 2008) Unclear Unclear (as supplied by VIP, Wan Fang and iLib)
Proceedings - 300,000 145,457** N/A 124,646 N/A Unclear
Theses - N/A 47,030*** N/A 144,318 N/A Unclear
Start Date 1978 1993 1979 1989 1997 2006 (articles available from 1997) 2004
Update Unclear Fortnightly Daily – satellite;
Monthly – disc
Unclear Weekly Weekly Unclear
Access and Output
Citation Subscription only Free access online Free access online Free access online Free access online Free access online Free access online
Chinese abstract Subscription only Free access online Free access online Free access online Free access online Free access online Redirected to citation supplier websites
English abstract Available in the full text PDF file Available in the full text PDF file Available in the full text PDF file Available in the full text PDF file Available in the full text PDF file Available in the full text PDF file Redirected to citation supplier websites
Full text PDF Subscription only Subscription only Subscription only Subscription only Subscription only Subscription only Redirected to citation supplier websites
Record selection All search results All search results Search results displayed per page (Max 10/page) Search results displayed per page (Max 50/page) Search results displayed per page (Max 20/page) Search results displayed per page (Max 11/page) Search results displayed per page (Default: 10/page; choices available: 20, 30, 50, 100/page)
Download format Tagged text
(500/file)
Tagged text
(300/file)
Tagged text
(unlimited/file)
Tagged text
(50/file)
Copy and paste
(unlimited/file)
Copy and paste
(unlimited/file)
Copy and paste
(unlimited/file)
  1. *Medicine & Hygiene subset **China Proceedings of Conference Database (CPCD) subset *** Doctor/Master Dissertations Database (CDMD) subset. †Department of Research & Development, Medical Library of Chinese People's Liberation Army. IMICAMS: Institute of Medical Informatics, Chinese Academy of Medical Sciences.