Companion Diagnostics Market By Indication: Cancer, Neurological Disorders, Cardiovascular Diseases, Infectious Diseases, Other Indications; By Product & Service: Assays, Kits & Reagents, Software & Services; By Technology: Polymerase Chain Reaction, Next-Generation Sequencing, In Situ Hybridization, Immunohistochemistry, Other; By Indication: Oncology, Neurology, Infectious Diseases, Others; By E