[1] Univ Texas Southwestern Med Ctr, Dept Anesthesiol & Pain Management, Dallas 75390, TX USA
[2] Div Pediat Anesthesiol, Childrens Hlth Syst Texas, Dallas 75235, TX USA
[3] Univ Penn, Perelman Sch Med, Dept Anesthesiol & Crit Care Med, Philadelphia, PA USA
[4] Childrens Hosp Philadelphia, Philadelphia, PA USA
[5] Outcomes Res Consortium, Cleveland, OH USA
[6] Tbilisi State Med Univ, Tbilisi, Georgia
[7] Ingorokva High Med Technol Univ Clin, Tbilisi, Georgia