[1] Pharmacoecon & Outcomes Res Iberia, Madrid, Spain
[2] Pharmacoecon & Outcomes Res Iberia, Pozuelo De Alarcon, Madrid, Spain
[3] Pharmacoecon & Outcomes Res Iberia, Pozuelo De Alarcon, Spain
[4] Hosp Univ Ramon & Cajal, Madrid, Spain
[5] Hosp Univ Vall dHebron, Barcelona, Spain
[6] Hosp Univ Virgen de la Victoria, Malaga, Spain
[7] Bristol Myers Squibb, Madrid, Spain