[1] Univ Cincinnati, Coll Med, Dept Pediat, Div Hosp Med,Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH USA
[2] Univ Washington, Dept Pediat, Div Hosp Med, Seattle, WA 98195 USA
[3] Seattle Childrens Hosp, Seattle, WA USA
[4] Drexel Univ, Coll Med, St Christophers Hosp Children, Philadelphia, PA 19104 USA
[5] Vanderbilt Univ, Sch Med, Nashville, TN 37212 USA
[6] Univ Arkansas Med Sci, Arkansas Childrens Hosp, Little Rock, AR 72205 USA
[7] Indiana Univ Sch Med, James Whitcomb Riley Hosp Children, Indianapolis, IN 46202 USA
[8] Univ Colorado, Sch Med, Childrens Hosp Colorado, Aurora, CO USA
[9] Univ Calif San Diego, Sch Med, San Diego, CA 92103 USA
[10] Texas Childrens Hosp, Baylor Coll Med, Dept Pediat, Sect Hosp Med, Houston, TX 77030 USA
[11] Harvard Univ, Sch Med, Dept Med, Div Gen Pediat,Boston Childrens Hosp, Boston, MA USA
[12] Brown Univ, Warren Alpert Med Sch, Hasbro Childrens Hosp, Providence, RI 02912 USA
[13] Blue Cross Blue Shield Assoc, Blue Cross Blue Shield Arizona, Phoenix, AZ USA
[14] Jersey Shore Med Ctr, Neptune Township, NJ USA
[15] Childrens Hosp Assoc, Overland Pk, KS USA
[16] Univ Calif Davis Hlth Syst, Sacramento, CA USA
[17] Univ Utah, Dept Pediat, Primary Childrens Hosp, Div Inpatient Med, Salt Lake City, UT USA
[18] Univ Texas Austin, Dell Med Sch, Austin, TX 78712 USA