PaTH: towards a learning health system in the Mid-Atlantic region - Amin, W; Tsui, FR; Borromeo, C; Chuang, CH; Espino, JU; Ford, D; Hwang, W; Kapoor, W; Lehmann, H; Martich, GH; Morton, S; Paranjape, A; Shirey, W; Sorensen, A; Becich, MJ; Hess, R (Journal of the American Medical Informatics Association, 2014)