[1] Isabel I Castile Int Univ, Hlth Sci Fac, Burgos, Spain
[2] Virgen Arrixaca Univ Hosp, Med Oncol Serv, El Palmar, Spain
[3] Dept Educ Reg Murcia, Murcia, Spain
[4] Radiotherapy Oncol Serv, Complejo Hosp Torrecardenas, Almeria, Spain
[5] Radiotherapy Oncol Serv, Genesis Care, Granada, Spain