Monitoring chest compression rate using cerebral oximetry. (September 2018) - Larrea, Andima; Salaberria, Ruth; Alonso, Daniel; Irusta, Unai; Aramendi, Elisabete; Isasi, Iraia; Lerma, Ana María; García, María Jesús; Férnandez, Cristian; Veliz, David; Molina, Iñaki