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 (Sep. 2022), 959–962. DOI:https://doi.org/10.47191/ijmscrs/v2-i9-09.