Norberg , Astrid, Bo Norberg, Ulf Parkhede, Hans Gippert, and Rolf Ekman. “The Effect of Short-Term High-Dose Treatment With Methenamine Hippurate of Urinary Infection in Geriatric Patients With Indwelling Catheters: II. Evaluation by Means of a Quantified Urine Sediment”. Upsala Journal of Medical Sciences 84, no. 1 (March 1, 1979): 75-82. Accessed April 7, 2026. https://ujms.net/index.php/ujms/article/view/7226.