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. Author manuscript; available in PMC: 2013 Dec 10.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2012 May 7;21(7):10.1158/1055-9965.EPI-12-0310. doi: 10.1158/1055-9965.EPI-12-0310

Figure 1.

Figure 1

Selection of study participants. HT, hormone therapy; ER, estrogen receptor negative