[1] Univ Santiago de Compostela, Serv Anestesiol Reanimac & Tratamiento Dolor, Hosp Clin Univ, Santiago De Compostela, Spain
[2] Univ Santiago de Compostela, Fac Med & Odontol, Santiago De Compostela, Spain
[3] Univ Valencia, Serv Anestesiol Reanimac & Tratamiento Dolo, Valencia, Spain
[4] Univ Valencia, Area Quirurg, Hosp Univ, Valencia, Spain
[5] Univ Valencia, Area Quirurg, Politecn La Fe, Valencia, Spain
[6] Univ Valencia, Fac Med & Odontol, Anestesiol, Reanimac, Valencia, Spain