Liu, C. K., Lai, C. L., Tai, C. T., Lin, R. T., Yen, Y. Y., & Howng, S. L. (1998). Incidence and subtypes of dementia in southern Taiwan: Impact of socio-demographic factors. Neurology, 50(6), 1572–1579. Lippincott Williams \& Wilkins, US, http://www.lww.com