[Comparative evaluation of the methods of direct and indirect chromo-endoscopy of the upper digestive system]. / Sravnitel'naia otsenka metodov priamoi i nepriamoi khromoéndoskopii verkhnikh otdelov pishchevaritel'nogo kanala.

The comparative assessment of the methods of direct and indirect chromoendoscopy is given. It is shown, that a method of direct endoscopy with washing clean the mucosa by the antifomsilan solution is the most convenient in mass examination of the patients, and permits to enhance considerably the quality of endoscopic investigations.