Kothsompong, Hathaimas. “Purple Urine Bag Syndrome in a Paraplegic Woman with a Long-Term Indwelling Catheter and Asymptomatic Urinary Tract Infection: A Case Report”. ASEAN Journal of Rehabilitation Medicine 31, no. 3 (October 8, 2021): 119–122. accessed December 6, 2025. https://he01.tci-thaijo.org/index.php/aseanjrm/article/view/243829.