1. Dysphagia;Reynolds,2012
2. Altered swallowing function in elderly patients without dysphagia: radiologic findings in 56 cases;Ekberg;Am J Roentgenol,1991
3. Population projections of the United States by age, sex, race, and Hispanic origin: 1995 to 2050, U.S. Bureau of the Census, Current Population Reports;Day,1996
4. US Census Bureau. The older population in the United States: 2010 to 2050. Available at: http://www.census.gov/prod/2010pubs/p25-1138.pdf. Accessed August, 2013.
5. Complications of oropharyngeal dysphagia: malnutrition and aspiration pneumonia;Carrión,2012