Calderón, C., Ferreira, E., Fernández-Andújar, M., Hernández, R., Pacheco-Barcia, V., Palacin-Lois, M., Gómez, D., Higuera, O., Martínez-Cabañes, R., Ferrando, P.J., Lorenzo-Seva, U. and Carmona-Bayonas, A. 2021. Psychometric Properties of the PDRQ-9 in Cancer Patients: Patient-Doctor Relationship Questionnaire. Psicothema. 33, Número 2 (May 2021), 304–311.