[1] Amer Board Internal Med, Philadelphia, PA 19106 USA
[2] Natl League Nursing, New York, NY USA
[3] Amer Coll Surg, Div Educ, Chicago, IL USA
[4] Tufts Univ, Sch Dent Med, Dept Oral & Maxillofacial Surg, Div Anesthesia & Pain Control,Dept Anesthesiol, Boston, MA 02111 USA
[5] Tufts Univ New England Med Ctr, Dept Anesthesiol, Boston, MA USA
[6] Tel Aviv Univ, Chaim Sheba Med Ctr, Israel Ctr Med Simulat, IL-69978 Tel Aviv, Israel
[7] Tel Aviv Univ, Med Educ Dept, Sackler Sch Med, IL-69978 Tel Aviv, Israel