Good God! how should the mitral valves prevent the regurgitation of air and not of blood?
Photo by Ákos Szabó
Photo by Ian Turnell
Good God! how should the mitral valves prevent the regurgitation of air and not of blood?
Good God! how should the mitral valves prevent the regurgitation of air and not of blood?
Good God! how should the mitral valves prevent the regurgitation of air and not of blood?