Author contribution: Lisovskii OV — study concept and design; Moiseeva KE — selection of materials and methods, text editing; Gritsinskaya VL — article authoring; Lisitsa IA — study coordination, collection of literature data; Valiakhmetova DG — data analysis and interpretation; Uskova SYu — statistical processing of the material; Shchekaleva PD — preparation of questionnaires, data collection; Stanchu AD — compilation of the database; all authors — approval of the final version of the article, ensuring the integrity of all of its parts.

Compliance with ethical standards: the study was approved by the Ethics Committee at St. Petersburg State Pediatric Medical University (Minutes No. 60/16 of October 24, 2025). Participation in the survey was voluntary and confidential.