Stanghelle, JK, L Festvåg, and AK. Aksnes. “Pulmonary Function and Symptom-Limited Exercise Stress Testing in Subjects With Late Sequelae of Poliomyelitis”. Journal of Rehabilitation Medicine 25, no. 3 (September 1, 1993): 125–129. Accessed February 19, 2025. https://medicaljournalssweden.se/jrm/article/view/41757.