Prof. Irina Zakharova graduated from D.I. Ulyanov Medical University in Kuibyshev, USSR, in 1979. After that she worked as a pediatrician in different regions in the USSR and other countries. In 1989 she completed her residency in pediatrics in the Russian Medical Academy of Continuous Professional Education, Moscow. She defended there a candidate thesis in 1994 and a doctoral thesis in 2000 (Clinic and diagnostics aspects of tubulointerstitial kidney diseases in children). In 2001-2008 she worked as a professor of department of pediatrics, since 2008 – as a head of this department. Prof. Irina Zakharova currently is also the Chairman of the Association of Doctors on Assistance in Training of Pediatricians of Russia, the Chairman of the Association of Doctors on Vitamin D Research, editor-in-chief of the Concillium Medicum Pediatrics and Medical Council Pediatrics.