[1] Univ Pittsburgh, Ctr Res Hlth Care, Pittsburgh, PA 15260 USA
[2] Univ Pittsburgh, CRISMA Lab, Dept Crit Care Med, Pittsburgh, PA USA
[3] Univ Washington, Div Pulm & Crit Care Med, Seattle, WA 98195 USA
[4] Univ Penn, Leonard Davis Inst Hlth Econ, Div Pulm Allergy & Crit Care, Philadelphia, PA 19104 USA
[5] Univ Penn, Sch Nursing, Philadelphia, PA 19104 USA
[6] Univ Calif San Francisco, Sch Nursing, San Francisco, CA 94143 USA
[7] Baystate Med Ctr, Harvard MIT Div Hlth Sci & Technol, Div Pediat Crit Care, Springfield, MA 01199 USA
[8] Mayo Clin Coll Med, Dept Internal Med, Div Pulm & Crit Care Med, Rochester, MN USA
[9] Methodist Hosp Clarian Hlth Partners, Indianapolis, IN USA
[10] Johns Hopkins Univ, Sch Med, Div Pulm & Crit Care Med, Baltimore, MD USA
[11] Montefiore Med Ctr, Dept Crit Care Med, New York, NY USA
[12] Albert Einstein Coll Med, New York, NY USA
[13] Sunnybrook & Womens Hlth Sci Ctr, Toronto, ON, Canada
[14] Univ Toronto, Dept Med, Toronto, ON, Canada
[15] Univ Penn, Ctr Hlth Equity Res & Promot, Philadelphia VA Med Ctr, Philadelphia, PA 19104 USA
[16] Univ Penn, Leonard Davis Inst Hlth Econ, Philadelphia, PA 19104 USA
[17] Henry Ford Hlth Syst, Detroit, MI USA