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Varga, Z.; Cassoly, E.; Li, Qiyu; Oehlschlegel, C.; Tapia, C.; Lehr, H. A.; Klingbiel, D.; Thuerlimann, B.; Ruhstaller, T. (2015). Standardization for Ki-67 Assessment in Moderately Differentiated Breast Cancer. A Retrospective Analysis of the SAKK 28/12 Study. PLoS ONE, 10(4), e0123435. Public Library of Science 10.1371/journal.pone.0123435
