van der Schaaf M, Beelen A, Dongelmans DA, Vroom MB, Nollet F. Poor functional recovery after a critical illness: a longitudinal study. JRM [Internet]. 2009 Sep. 3 [cited 2024 Apr. 28];41(13):1041-8. Available from: https://medicaljournalssweden.se/jrm/article/view/17959