Serrano Aguilar, JorgeSerrano Serrano, Luis R.2014-07-042014-07-041973http://dspace.ucuenca.edu.ec/handle/123456789/18294application/pdfopenAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/ec/OtorrinolaringologiaEpistaxisbachelorThesis