Perceived health and physical functioning in postpoliomyelitis syndrome: a 6-year prospective follow-up study1 Frans Nollet, MD, PhD, Anita Beelen, PhD, Jos W Twisk, PhD, Gustaaf J Lankhorst, MD, PhD, Marianne de Visser, MD, PhD Archives of Physical Medicine and Rehabilitation Volume 84, Issue 7, Pages 1048-1056 (July 2003) DOI: 10.1016/S0003-9993(03)00108-4
Fig 1 Flow diagram of measurements taken and missing data at the various measurement points. Archives of Physical Medicine and Rehabilitation 2003 84, 1048-1056DOI: (10.1016/S0003-9993(03)00108-4)
Fig 2 Mean NHP physical mobility scores for the subjects with a decline of 3.75 seconds or more (○) and for the remainder of subjects (•). NOTE. The vertical bars represent the standard error of the mean. Archives of Physical Medicine and Rehabilitation 2003 84, 1048-1056DOI: (10.1016/S0003-9993(03)00108-4)