Letter: The Role of Skull Thickness Beyond the Skull Density Ratio on MRgFUS Thalamotomy Feasibility. Issue 5 (1st May 2020) - Pineda-Pardo, José A; Máñez-Miró, Jorge U; López-Aguirre, Miguel; Rodríguez-Rojas, Rafael; Caballero-Insaurriaga, Jaime; M, Del Álamo; Martínez-Fernández, Raúl; Obeso, José A