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Significant inter- and intra-laboratory variation in grading of invasive breast cancer: A nationwide study of 33,043 patients in the Netherlands
The increasing importance of histologic grading in tailoring adjuvant systemic therapy in 30,843 breast cancer patients
Significant inter- and intra-laboratory variation in grading of ductal carcinoma in situ of the breast : a nationwide study of 4901 patients in the Netherlands
Significant inter- and intra-laboratory variation in grading of ductal carcinoma in situ of the breast: a nationwide study of 4901 patients in the Netherlands