[1] UNIV NAVARRA,SCH MED,UNIV CLIN,DEPT DERMATOL,POB 192,E-31080 PAMPLONA,SPAIN
[2] UNIV NAVARRA,SCH MED,UNIV CLIN,LIVER UNIT,PAMPLONA,SPAIN
[3] UNIV NAVARRA,SCH MED,UNIV CLIN,DEPT SURG,PAMPLONA,SPAIN
[4] UNIV NAVARRA,SCH MED,UNIV CLIN,DEPT PHARMACOL,PAMPLONA,SPAIN