[1] Wisconsin Poison Ctr, Milwaukee, WI 53201 USA
[2] Med Coll Wisconsin, Sch Pharm, Milwaukee, WI 53226 USA
[3] Med Coll Wisconsin, Dept Emergency Med, Milwaukee, WI 53226 USA
[4] Froedtert Hosp, Dept Pharm, Milwaukee, WI 53226 USA
[5] Univ New Mexico, Dept Emergency Med, Albuquerque, NM 87131 USA