Hierro Zorrilla, I.; Verdugo Alonso, M. Á.; Gómez Sánchez, L. E.; Fernández Ezquerra, S.; Cisneros Fernández, P. Evaluating the Quality of Life of People With Profound and Multiple Disabilities: Use of the San Martín Scale at the Obra San Martín Foundation. REDIS 2015, 3 (1), 93-105.