The 4th joint charity campaign "Smile" was held at the shopping center Maktama Park on Saturday, May 25. The purpose of the campaign was the early diagnosis of onco-hematological diseases in adults and children. The organizers of the event were: Oncology Dispensary and Municipal Dental Clinic at the support of Healthcare Department of Almetyevsk municipal district. Students of Medical College and cartoon characters invited visitors to the shopping center for examination and distributed visual materials about oral cancer.