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Dyfyniad Arddull ChicagoNippon Gan Gakkai. Japanese Journal of Cancer Research: Gann. Tokyo: Japanese Cancer Association, 1985.
Dyfyniad MLANippon Gan Gakkai. Japanese Journal of Cancer Research: Gann. Japanese Cancer Association, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.