Focus on health information technology, electronic health records and their financial impact: The financial impact of health information exchange on emergency department care. - Mark E. Frisse; Kevin B. Johnson; Hui Nian; Coda L. Davison; Cynthia S. Gadd; Kim M. Unertl; Pat A. Turri; Qingxia Chen (J. Am. Medical Informatics Assoc., 2012)