HER2 Breast Cancer Test Market: Introduction   According to the report, the global HER2 breast cancer test market was valued at US$ 313.4 Mn in 2020 and is projected to expand at a CAGR of 6.5% from 2021 to 2031. HER2 stands for human epidermal growth factor receptor 2. It is involved in normal cell growth. Women newly detected with...