King Salman Humanitarian Aid and Relief Center's (KSrelief) concluded Saturday the voluntary medical campaign for children's open-heart surgery in the Federal Republic of Tanzania. KSrelief's medical team examined 60 children and performed 34 successful open-heart surgeries, with the participation of 25 male and female volunteers. The center also held training courses to build the capacity of medical staff, benefiting 50 individuals. The campaign comes as a part of the humanitarian efforts being exerted by the Kingdom of Saudi Arabia, through KSrelief , in many countries, with the aim of providing treatment services to patients from families with limited income.