[1] Clin Foscal Int, Floridablanca, Colombia
[2] ALIVIAR SAS Pain & Palliat Care Clin, Floridablanca, Colombia
[3] Autonomous Univ Bucaramanga, Bucaramanga, Santander, Colombia
[4] Univ Valencia, Valencia, Spain
[5] Ophthalmol Fdn Santander FOSCAL, Bucaramanga, Santander, Colombia