[1] Univ Valladolid, Fac Med, Valladolid, Spain
[2] Emergency Med Serv SACYL, Adv Life Support, Valladolid, Spain
[3] Hosp Clin Univ, Emergency Dept, Valladolid, Spain
[4] Hosp Univ Rio Hortega, Emergency Dept, Valladolid, Spain
[5] Univ Castilla La Mancha, Fac Hlth Sci, Avda Real Fabr Seda S-N, Talavera De La Reina 45600, Spain
[6] Univ Castilla La Mancha, Fac Hlth Sci, Technol Innovat Appl Hlth Res Grp ITAS Grp, Talavera De La Reina 45600, Spain
[7] Univ Europea Atlantico, Santander, Spain
[8] Univ Int Iberoamer, Campeche, Mexico
[9] Univ La Romana, La Romana, Dominican Rep
[10] Univ Int Iberoamer Arecibo, Arecibo, PR USA
[11] Fdn Univa Int Colombia, Bogota, Colombia
[12] Univ Int Cuanza, Cuito, Bie, Angola