[1] Roche, TeraViC4 Study Grp, Madrid, Spain
[2] H Clin Prov I, Barcelona, Spain
[3] H Gen, Valencia, Spain
[4] H Puerta Hierro, Madrid, Spain
[5] H Sant Pau, Barcelona, Spain
[6] H La Princesa, Madrid, Spain
[7] HU Valme, Seville, Spain
[8] H Ramon & Cajal, Madrid, Spain
[9] H Marques Valdecilla, Santander, Spain
[10] H Virgen Victoria, Malaga, Spain