Bradley J. Willcox, Donald Craig Willcox, Makoto Suzuki: Demographic, phenotypic, and genetic characteristics of centenarians in Okinawa and Japan: Part 1—centenarians in Okinawa. Mechanisms of Ageing and Development, 1.7.2017, 165. vsk, s. 75–79. doi:10.1016/j.mad.2016.11.001ISSN 0047-6374Artikkelin verkkoversio.
Bradley J. Willcox, Donald Craig Willcox, Makoto Suzuki: Demographic, phenotypic, and genetic characteristics of centenarians in Okinawa and Japan: Part 1—centenarians in Okinawa. Mechanisms of Ageing and Development, 1.7.2017, 165. vsk, s. 75–79. doi:10.1016/j.mad.2016.11.001ISSN 0047-6374Artikkelin verkkoversio.
Bradley J. Willcox, Donald Craig Willcox, Makoto Suzuki: Demographic, phenotypic, and genetic characteristics of centenarians in Okinawa and Japan: Part 1—centenarians in Okinawa. Mechanisms of Ageing and Development, 1.7.2017, 165. vsk, s. 75–79. doi:10.1016/j.mad.2016.11.001ISSN 0047-6374Artikkelin verkkoversio.