[1] Vall dHebron Hosp, Barcelona, Spain
[2] Virgen de la Arrixaca Hosp, Murcia, Spain
[3] Puerta de Hierro Univ Hosp, Madrid, Spain
[4] Sierrallana Hosp, Torrelavega, Spain
[5] Virgen de la Salud Hosp, Toledo, Spain
[6] Leon Hosp, Leon, Spain
[7] GlaxoSmithKline, Madrid, Spain
[8] GlaxoSmithKline, Brentford, England