Progesterone receptor (PR) expression assessment in early invasive breast cancer remains controversial. This study sought to re-evaluate PR expression as a potential therapeutic guide in early breast ...
Individualized targeted therapies for cancer patients require accurate and reproducible assessment of biomarkers to be able to plan treatment accordingly. Recent studies have shown highly variable ...
If you use a character variable with an operator that requires numeric operands, such as the plus sign, SAS converts the character variable to numeric. If you use a comparison operator, such as the ...
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