[1] Mayo Clin, Rochester, MN 55905 USA
[2] CUNY Mt Sinai Sch Med, New York, NY 10029 USA
[3] Food Allergy & Anaphylaxis Network, Fairfax, VA USA
[4] Johns Hopkins Univ, Sch Med, Baltimore, MD 21218 USA
[5] Food Allergy & Anaphylaxis Network, Boulder, CO USA
[6] Natl Ctr Hlth Stat, Hyattsville, MD 20782 USA
[7] Fremantle Hosp, Fremantle, WA USA
[8] Massachusetts Gen Hosp, Boston, MA 02114 USA
[9] Case Western Reserve Univ, Sch Med, Cleveland, OH 44106 USA
[10] Stanford Univ, Sch Med, Stanford, CA 94305 USA
[11] Ctr Dis Control & Prevent, Lilbum, GA USA
[12] Univ Texas, SW Med Ctr, Dallas, TX USA
[13] Amer Acad Pediat, Eugene, OR USA
[14] Amer Soc Anesthesiol, Boston, MA USA
[15] Soc Acad Emergency Med, St Louis, MO USA
[16] Amer Coll Allergy Asthma & Immunol, Cordova, TN USA
[17] NIAID, Bethesda, MD 20892 USA
[18] Natl Inst Hlth, Bethesda, MD 20892 USA
[19] Natl Assoc EMS Physicians, Baltimore, MD USA
[20] Univ Padua, I-35100 Padua, Italy
[21] Amer Acad Allergy Asthma & Immunol, Winnipeg, MB, Canada
[22] Amer Coll Emergency Physicians, Dallas, TX USA
[23] Amer Acad Emergency Med, Scottsdale, AZ USA