PROSPECTIVE OR RETROSPECTIVE - WHATS IN A NAME

被引:42
作者
VANDENBROUCKE, JP
机构
关键词
D O I
10.1136/bmj.302.6771.249
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
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页码:249 / 250
页数:2
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