1. Baranov A. A. Shcherbakov P. L. Detskaya gastroenterologiya: problemy i zadachi na sovremennom etape [Children’s gastroenterology: problems and tasks at the present stage]. Voprosy sovremennoy pediatrii -Questions of modern pediatrics, 2007; no. 6: 5, rr. 514. (In Russ.)@@ Baranov A. A., Shcherbakov P. L. Detskaya gastroenterologiya: problemy i zadachi na sovremennom etape. // Voprosy sovremennoi pediatrii 2007; 6: 5: 5-14.
2. Ursova N. I. Helikobakternaya infekciya u detej: problema, analiz obobshchennyh dannyh [Helicobacter infection in children: problem, analysis of generalized data]. Lechashchij vrach - Attending physician, 2009, no. 6, pp. 14-17. (In Russ.)@@ Ursova N. I. Khelikobakternaya infektsiya u detei: problema, analiz obobshchennykh dannykh. Lechashchii vrach. 2009. № 6. S. 14-17.
3. Ivleva N.A., Sabirova Z. F. Rol` faktorov riska v formirovanii xronicheskix zabolevanij organov pishhevareniya u detej [The role of risk factors in the formation of chronic diseases of the digestive system in children]. Gigiena i sanitariya -Hygiene and sanitation 2000, no. 5, pp. 5-7. (In Russ.)@@ Ivleva N. A., Sabirova Z. F. Rol' faktorov riska v formirovanii khronicheskikh zabolevanii organov pishchevareniya u detei. Gigiena i sanitariya 2000; 5: 5-7.
4. Miles S., Piazuelo M. B., Semino-Mora C. et al. Detailed in vivo Analysis of the Role of Helicobacter pylori Fur in Colonization and Disease Infect. Immun. 2010; 78(7):3072-3082. (In Russ.) doi:10.1128/IAI.00190-10
5. Usenko D. V., Konanykhina S. Y. Modern aspects of giardiasis diagnosis and treatment. Current Pediatrics, 2015, vol. 14, no. 1, pp. 108-113. (In Russ.) https://doi.org/10.15690/vsp.v14i1.1268@@ Usenko D. V., Konanykhina S. Yu. Sovremennye aspekty diagnostiki i lecheniya lyamblioza. Voprosy sovremennoi pediatrii. 2015;14 (1): 108-113.