Cerra RP, Castagna A, Torchia C, Costa R, Scalise L, Suraci E, et al. A case of purple urine bag syndrome in an elderly patient. Geriatr Care [Internet]. 2020 Jun. 15 [cited 2026 Nov. 6];6(3). Available from: https://www.pagepressjournals.org/gc/article/view/8934