Fullformexpand.com, 2026. "DDPRQ." Accessed April 7, 2026. https://www.fullformexpand.com/ddprq/difficult-doctor-patient-relationship-questionnaire.
"DDPRQ." (n.d.). Fullformexpand.com. Retrieved April 7, 2026, from https://www.fullformexpand.com/ddprq/difficult-doctor-patient-relationship-questionnaire.
DDPRQ. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/ddprq/difficult-doctor-patient-relationship-questionnaire (Accessed: 7 April 2026).