[REPLACEMENT OF THE MITRAL VALVE BY BALL-PROSTHESES].
D000293:Adolescent; D006350:Heart Valve Prosthesis; D006801:Humans; D008943:Mitral Valve; D008946:Mitral Valve Stenosis; D019736:Prostheses and Implants
ADOLESCENCE; HEART VALVE PROSTHESIS; MITRAL VALVE STENOSIS
ZAMENA MITRAL'NOGO KLAPANA SERDTSA SHAROVYM PROTEZOM.