[1] SUNY Albany, Dept Hlth Policy Management & Behav, Rensselaer, NY 12144 USA
[2] St Peters Hosp, Albany, NY USA
[3] Mercy Hosp, Buffalo, NY USA
[4] NYU, Med Ctr, New York, NY 10016 USA
[5] Med Univ Ohio, Toledo, OH USA
[6] Rush Univ, Med Ctr, Chicago, IL 60612 USA
[7] Columbia Presbyterian Med Ctr, New York, NY 10032 USA
[8] Duke Univ, Med Ctr, Durham, NC 27706 USA