Martínez, A. S. . and Nuno, J. de J. V. . (2022) “Innocent Murmur since Childhood: Elderly Patient with Undiagnosed Interventricular Septal Defect”, International Journal of Medical Science and Clinical Research Studies , 2(9), pp. 959–962. doi: 10.47191/ijmscrs/v2-i9-09.