Briones García, J. I. “Evaluation of the Effect of Cortisol Caused by Hypoxia on Some Immunological Parameters of Tilapia Commercialization from the City of Sucua - Ecuador”. ConcienciaDigital, Vol. 4, no. 1.2, Mar. 2021, pp. 446-5, doi:10.33262/concienciadigital.v4i1.2.1611.