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APA Citation
Caughey, G. E., Ramsay, E. N., Vitry, A. I., Gilbert, A. L., Luszcz, M. A., Ryan, P., & Roughead, E. E. (2010). comorbid chronic diseases, discordant impact on mortality in older people: a 14-year longitudinal population study. Journal of epidemiology and community health, 64(12), 1036–1042. http://access.bl.uk/ark:/81055/vdc_100135165181.0x00002a