病案随机抽样的Stata实现

病案随机抽样的Stata实现

易伟，黄振宇，牛亚丹，周玉琴

Implementation of Stata for random sampling of medical records

Yi Wei，Huang Zhenyu，Niu Yadan，Zhou Yuqin

中国医院统计 . 2023, (2): 152 -156 . DOI: 10.3969/j.issn.1006-5253.2023.02.014