Challenges in adapting existing clinical natural language processing systems to multiple, diverse health care settings. - David S. Carrell; Robert E. Schoen; Daniel A. Leffler; Michele Morris; Sherri Rose; Andrew Baer; Seth D. Crockett; Rebecca Gourevitch; Katie M. Dean; Ateev Mehrotra (J. Am. Medical Informatics Assoc., 2017)