#912235Leo Bokeriya, right, head of the Bakoulev Center for Cardiovascular Surgery, after a heart valve replacement surgery. The heart valve implant was made of animal biomaterial.Sign in or register,to downloadAdd to cartRemove from cartPackage: Heart valve replacement surgeryCategories: HealthLocation: Moscow, RussiaEvent date: 19.05.2011Date published: 19.05.2011Author: Mikhail FomichevCredit: SputnikSource: SputnikOriginal: DigitalMedia: JPEG, 1883x2405px, 943.6Kbhealthcaresurgery