巢式病例对照研究文献案例分享
郑丽娜,刘丽萍
Literature Case Sharing on Nested Case-Control Study
ZHENG Li-Na, LIU Li-Ping
中国卒中杂志 . 2020, (09): 1028 -1029 .  DOI: 10.3969/j.issn. 1673-5765.2020.09.021