Global Companion Diagnostic Market Size, Share Analysis By Tech (PCR, NGS, IHC, ISH, FISH, dPCR, Gene Expression, DNA Seq, Microarray), By Indication (Oncology, Cardiovascular, Neurology, Infection, Autoimmune, Rare Genetic), By Product (Assays, Kits, Instruments, Software, Panels, Consumables), By End-User (Hospitals, Labs, Pharma, Biotech, Academic, CROs) Region & Key Players-Industry Segment Overview, Dynamics, Strategies, Trends & Forecast 2026-2034