<i>CYP2C19</i> Genotype and Efficacy of Clopidogrel Initiated Between 24 to 72 Hours for Ischemic Stroke Authors Hongyi Yan (ORCID: https://orcid.org/0000-0001-5190-6345) Dongxiao Yao (ORCID: https://orcid.org/0000-0002-3220-2382) Yingying Yang (ORCID: https://orcid.org/0000-0001-9431-9925) Dandan Liu (ORCID: https://orcid.org/0000-0002-4534-1082) Yuesong Pan (ORCID: https://orcid.org/0000-0003-3082-6789) Lingling Jiang (ORCID: https://orcid.org/0000-0003-4694-6419) Yilong Wang (ORCID: https://orcid.org/0000-0003-2725-2788) Tingting Wang (ORCID: https://orcid.org/0000-0002-3809-2209) Weiqi Chen (ORCID: https://orcid.org/0000-0002-2551-9314) Ying Gao (ORCID: https://orcid.org/0000-0002-5409-7675) Yun Chen Institutions Capital Medical University (CN) National Clinical Research Center for Digestive Diseases (CN) Chinese Institute for Brain Research (CN) Beijing YouAn Hospital (CN) Beijing Advanced Sciences and Innovation Center (CN) Explore the Global Research Space Interactive Map