Cheng, R., Feng, J., Goodwin, A. M., Uher, D., Rao, A. K., McDermott, M. P., De Vivo, D. C., Ewing Garber, C., & Montes, J. (2022). Perceived exertion is not a substitute for fatiguability in spinal muscular atrophy. Muscle & Nerve, 68(1), 81–84. Portico. https://doi.org/10.1002/mus.27765