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Impact of time-varying exposure on estimated effects in observational studies using routinely collected data:

Wen Wang1,2,3, Mei Liu1,2,3, Jiayue Xu1,2,3

  • 1Chinese Evidence-based Medicine Center and Cochrane China Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.

BMJ Open
|July 5, 2022
PubMed
Abstract

Keywords:
clinical pharmacologyepidemiologystatistics & research methods

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