A Brief History of Postpolio Syndrome in the United States Lauro S. Halstead, MD Archives of Physical Medicine and Rehabilitation Volume 92, Issue 8, Pages 1344-1349 (August 2011) DOI: 10.1016/j.apmr.2011.03.002 Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions
Fig 1 Mean frequency distribution per year of articles published in the medical literature for 5-year intervals, 1980 to 2009. (See Appendix 1 for search strategy and selection criteria.) Archives of Physical Medicine and Rehabilitation 2011 92, 1344-1349DOI: (10.1016/j.apmr.2011.03.002) Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions
Fig 2 Number of support groups and clinics at 5-year intervals, 1985 to 2010. Archives of Physical Medicine and Rehabilitation 2011 92, 1344-1349DOI: (10.1016/j.apmr.2011.03.002) Copyright © 2011 American Congress of Rehabilitation Medicine Terms and Conditions