[3] Cheung F Y, Mang O W, Law S C. Hong Kong Med. J., 2011, 2(17): 89.
[4] Whitlock E P, Vesco K K, Eder M, et al. Ann. Intern. Med., 2011, 155(10): 687.
[5] Biesterfeld S, Beckers S, Del Carmen Villa Cadenas M, et al. Anticancer Res., 2011, 31(1): 53.
[6] Tong H, Shen R, Wang Z, et al. Clin. Cancer. Res., 2009, 15(20): 6438.
[8] Colditz G A, Crowley J. Clin. Cancer Res., 2011, 17(22): 6971.