Artificial intelligence approaches for phenotyping heart failure in U.S. Veterans Health Administration electronic health record oleh Yijun Shao, Sijian Zhang, Venkatesh K. Raman, Samir S. Patel, Yan Cheng, Anshul Parulkar, Phillip H. Lam, Hans Moore, Helen M. Sheriff, Gregg C. Fonarow, Paul A. Heidenreich, Wen‐Chih Wu, Ali Ahmed, Qing Zeng‐Treitler