[1] Weill Cornell Med Coll, Healthcare Policy & Res, New York, NY 10065 USA
[2] Cornell Univ, Dept Policy Anal & Management, Ithaca, NY USA
[3] Weill Cornell Med Coll, Dept Healthcare Policy & Res, New York, NY USA
[4] Univ Penn, Ctr Emergency Care Policy & Res, Perelman Sch Med, Philadelphia, PA 19104 USA
[5] Univ Penn, Perelman Sch Med, Dept Emergency Med, Philadelphia, PA 19104 USA
[6] Univ Penn, Leonard Davis Inst Hlth Econ, Philadelphia, PA 19104 USA
[7] Ctr Hlth Econ Treatment Intervent Subst Use Disor, Washington, DC USA