de Morton, N.Nolan, J.2012-06-062012-06-062011Journal of Clinical Epidemiology, 2011; 64(6):667-6740895-4356http://hdl.handle.net/2440/71431en© 2011 Elsevier Inc. All rights reservedUnidimensionality of the Elderly Mobility Scale in older acute medical patients: different methods, different answersJournal article002011787310.1016/j.jclinepi.2010.09.00425163