R.A. FAYZULLINA, U.O. FOMINA, A.V. GALYAUTDINOV, A.M. ZAKIROVA, E.A. SAMORODNOVA  Kazan State Medical University, Kazan  Contact details: Fayzullina R.A. — MD, Professor of the Department of Children’s Diseases Propedeutics and Faculty Pediatrics Address: 49 Butlerov St., 420012 Kazan, Russian Federation, tel.: +7 (843) 236-06-52, e-mail: rezeda.faizullina@kazangmu.ru  Over the past century, humanity has made significant breakthroughs in medicine, opening […]