6Effects of radiotherapy and surgery in early breast cancer. An over- view of the randomized trials. Early Breast Cancer Trialists' Collabo- rative Group[ J]. N Engl J Med, 1995,333 : 1444 - 1455.
7Gonzalez AM, Morales VF, Hortobagyi GN. Overview of resistance to systemic therapy in patients with breast cancer [ J]. Adv Exp MedBio1,2010 ,608 ( 1 ) : 1 -22.
8Yau TK, Choi CW, Sze H, et al. indication to breast conservation Should young age be a contra - treatment in Chinese women? Twelve - year experience from a public cancer centre inHong Kong [J]. Hong Kong Med J, 2009, 15(2) : 94-99.
9Beadle BM,Woodward WA, Tucker SL, et al. Ten & year recur- rence rates in young women with breast cancer by locoregionaltreat- ment approach[J]. Int J Radiat Oncol Biol Phys, 2009, 73(3) : 734 - 744.
10van Smitten K. Margin status after breast - conserving treatment of_ breast cancer : how much free margin is enough [ J ]. J Surg Oneol, 2008, 98(8) : 585 -587.