Tolosa-López, S., Crespo-Pérez, N., Llanos-Redondo, A., Aguilar-Cañas, S., Rangel-Navia, H. ., Portilla-Portilla, E. M. and Rivera-Porras, D. (2021) “Comparative study of the Fundamental Frequency, Jitter and Shimmer in normal hearing and hard of hearing schoolchildren”, Ciencia e Innovación en Salud. doi: 10.17081/innosa.143.