Paredes-López D, Robles-Huaynate R and Valles-Tananta R 2018:  
A comparative evaluation of the hematological parameters, biochemical profile and chemical composition of eggs of creole and Hy-line Brown laying hens. 
 Livestock Research for Rural Development. Volume 30, Article #3. 
 Retrieved 
, from http://www.lrrd.org/lrrd30/1/fz.de30003.html