aEmergency Department, Hospital Clínic, Barcelona
bEmergency Department, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Catalonia
cEmergency Department, Hospital General Universitario de Alicante, Alicante
dEmergency Department, Hospital Clínico San Carlos, Madrid
eEmergency Department, Hospital Central de Asturias, Oviedo
fEmergency Department, Hospital La Fe, Valencia
gEmergency Department, Hospital Universitari de Salamanca, Salamanca
hEmergency Department, Hospital Marqués de Valdecilla, Santander, Spain
Correspondence to Dr Òscar Miró, PhD, MD, Emergency Department, Hospital Clinic, Villarroel 170, 08036 Barcelona, Catalonia, Spain
Tel: +34 93 227 98 33; fax: +34 93 227 56 93; e-mail: [email protected]
Received 15 April 2009 Accepted 10 June 2009
