Achim, A., S. Vesa, and E. Dumitru. “The Efficacy of Virtual Chromoendoscopy in the Diagnosis of Portal Hypertensive Gastropathy”. Journal of Gastrointestinal and Liver Diseases, Vol. 25, no. 3, Sept. 2016, pp. 289-93, doi:10.15403/jgld.2014.1121.253.chr.