[1] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[2] Baptist Hosp Miami, Miami, FL USA
[3] Wake Forest Sch Med, Translat Sci Inst, Winston Salem, NC USA
[4] Univ Calif Irvine, Irvine, CA USA
[5] Univ Washington, Collaborat Hlth Studies Coordinating Cntr, Seattle, WA 98195 USA
[6] Johns Hopkins Univ Hosp, Harbor UCLA Med Cntr, Los Angeles Biomed Rsch Inst, Torrance, CA USA