[1] Policlin Umberto 1, Emergency Toxicol & Poison Control Ctr Unit, Rome, Italy
[2] Univ Roma La Sapienza, I-00185 Rome, Italy
[3] Univ Roma La Sapienza, Dept Pediat, I-00185 Rome, Italy
[4] IRCCS Maugeri Fdn, Poison Control Ctr, Pavia, Italy
[5] IRCCS Maugeri Fdn, Natl Toxicol Informat Ctr, Pavia, Italy
[6] Univ Pavia, I-27100 Pavia, Italy
[7] Ist Super Sanita, Dept Vet Publ Hlth & Food Safety, Natl Reference Ctr Botulism, I-00161 Rome, Italy