1. From Hospital Universitari Son Dureta, Palma de Mallorca, Hospital San Pedro de Alcantara, Caceres, Hospital Txagorritxu, Vitoria-Gasteiz, Hospital Joan March, Bunyola, Hospital Clinic, Barcelona, and Hospital Bellvitge, L'Hospitalet de Llobregat, Spain; and Royal Infirmary, Edinburgh, United Kingdom.