COVID-19 is commonly diagnosed by quantitative fluorescence real-time reverse transcriptase-polymerase chain reaction (qRT-PCR) (1, 2). The test is the sequential action of two enzymes–an ...
Lumpectomy plus tamoxifen with or without irradiation in women age 70 or older with early breast cancer. Background: Gene expression profiling has reclassified breast cancer into intrinsic subtypes ...
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