1. The assessment of imbalance;Begbie;Physiotherapy,1969
2. Decrease in timed balance test scores with ageing;Bohannon;Phys Ther,1984
3. Clinical correlates of sway in old age-sensory modalities;Brocklehurst;Age Ageing,1982
4. Visual input: its importance in the control of postural sway;Dornan;Arch Phys Med Rehabil,1978
5. Standing balance in healthy subjects: evaluation of a quantitative test battery on a force platform;Ekdahl;Scand J Rehabil Med,1989