Molina Sotomayor, Edgardo ; González Jurado, José Antonio ; León Prados, Juan Antonio AGS, BGS. Guideline for the prevention of falls in older persons. American Geriatrics Society, British Geriatrics Society, and American Academy of Orthopaedic Surgeons Panel on Falls Prevention. Journal of the American Geriatrics Society. 2001 May; 49(5):664-72..
,
2010