Fullformexpand.com, 2026. "DDAQ." Accessed April 6, 2026. https://www.fullformexpand.com/ddaq/digestive-disease-acceptance-questionnaire.
"DDAQ." (n.d.). Fullformexpand.com. Retrieved April 6, 2026, from https://www.fullformexpand.com/ddaq/digestive-disease-acceptance-questionnaire.
DDAQ. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/ddaq/digestive-disease-acceptance-questionnaire (Accessed: 6 April 2026).