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1دورية أكاديمية
المؤلفون: Freedman, L.S., Barchana, M., Al-Kayed, S., Qasem, M.B., Young, J.L, Edwards, B.K., Ries, L.A.G., Roffers, S., Harford, J., Silbermann, M.
المصدر: European Journal of Cancer Prevention, 2003 Oct 01. 12(5), 359-365.
الوصول الحر: https://www.jstor.org/stable/45051360Test
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2دورية أكاديمية
المؤلفون: Freedman, Laurence S, Al-Kayed, Samir, Barchana, Micha, Boyiadzis, Michael, El-Najjar, Khamis, Ibrahim, Amal Samy, Salhab, Abdel Razzaq, Young, John L, Roffers, Steven, Kahan, Ernesto, Harford, Joe, Silbermann, Michael, Freedman, L S, Al-Kayed, S, Qasem, M B, Barchana, M, Boyiadzis, M, El-Najjar, K, Ibrahim, A S, Salhab, A R
المصدر: Epidemiology; Jan2001, Vol. 12 Issue 1, p131-133, 3p