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Lua i Stíl Chicago (17ú heag.)East, J., S. Travis, agus S. Leedham. Causality and Chance in the Development of Cancer. Massachusetts Medical Society, 2015.
Lua MLA (9ú heag.)East, J., et al. Causality and Chance in the Development of Cancer. Massachusetts Medical Society, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.