Request Sample Global Companion Diagnostics Market Size, Share & Trends Analysis Report by Technology (Polymerase Chain Reaction (PCR), In Situ Hybridization (ISH), Immunohistochemistry (IHC), Next-Generation Sequencing (NGS), and Others) and by Indication (Breast Cancer, Lung Cancer, Melanoma, Neurological Diseases, and Others) and Forecast 2020-2026