Professor of the Department of Children's Diseases of our University, MD, pediatrician of the highest category, allergist-immunologist of the highest category Raphael Rosenson conducts an online master class at the Semey Medical University, Link to connect: https://us02web.zoom.us/j/89478075477?pwd=RklJQTdVcHdsaEVPbTdVZ2VXV0loZz09. Access code: 123456. Everyone is invited to attend.