Neira Carrión, JoséUgalde Noritz, AlejandroBimos Ortega, Juan2014-07-042014-07-041973http://dspace.ucuenca.edu.ec/handle/123456789/18295application/pdfopenAccesshttp://creativecommons.org/licenses/by-nc-sa/3.0/ec/CardialgiaVaricesbachelorThesis