Fig. 4From: Advanced Robotic Therapy Integrated Centers (ARTIC): an international collaboration facilitating the application of rehabilitation technologiesHistograms showing the distribution of age for patients with Cerebral Palsy (CP), stroke, spinal cord injury (SCI), and traumatic brain injury (TBI). Please note the different scales on the y-axes. Grey lines indicate distributions of age, which are based on numbers from the following epidemiological studies: stroke [40], SCI [53], and TBI [61]Back to article page