[1] Betsy Lehman Ctr Patient Safety, Boston, MA USA
[2] Beth Israel Deaconess Med Ctr, Patient Safety & Qual Initiat, Boston, MA 02215 USA
[3] Harvard Med Sch, Boston, MA 02115 USA
[4] Univ Texas Hlth Sci Ctr Houston, UTHlth Mem Hermann Ctr Healthcare Qual & Safety, Houston, TX 77030 USA
[5] Commonwealth Fund, New York, NY USA
[6] Tufts Univ, Sch Med, Tufts Med Ctr, Boston, MA 02111 USA
[7] Brigham & Womens Hosp, Ctr Surg & Publ Hlth, 75 Francis St, Boston, MA 02115 USA
[8] Yale Univ, Sch Publ Hlth, Hlth Policy & Management, New Haven, CT USA