In addition, a weakly significant negative correlation was found between the number of positive axillary nodes and ER (ICC, r = −18; DCC. r = −.15) and a weakly significant negative correlation between tumor grade and ER (ICC, r = −.17) as well as PR (ICC, r = −.24; DCC, r = −.14).
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Reporting Recommendations for Tumor Marker Prognostic Studies (REMARK): explanation and elaboration.
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