The biomedical journal papers and core journals covered in 3 full-text databases of Chinese journal, and the papers published in 20 core journals sinc e 1998 were analyzed.

• 分析了3个中文期刊全文数据库收录生物医学期刊文献数量、核心期刊种数及20种核心期刊1998年以来收录的论文数量。