The power of repetition in mastering cardiac auscultation

Barrett, M. J., Kuzma, M. A., Seto, T. C., Richards, P., Mason, D., Barrett, D. M., & Gracely, E. J. (2006). The power of repetition in mastering cardiac auscultation. American Journal of Medicine, 119(1), 73–75. https://doi.org/10.1016/j.amjmed.2004.12.036