GV invests resources in healthcare technology, information technology, medical devices, medical diagnostics and therapeutics. Digital PCR has many applications in basic research, clinical diagnostics and environmental testing. In health, researchers focus is on wellness, disease prevention, advanced diagnostics and biomedical analytics. Uses include nondestructive material testing, medical diagnostics and sound suppression. Phosphoproteins could be cancer markers useful to cancer diagnostics and therapeutics. Pax manufactures transformer testing and insulation diagnostics equipment. Biomedicine is the cornerstone of modern health care and laboratory diagnostics. Ultrasound is commonly used for medical diagnostics such as sonograms. ELISA tests also are used as in "in vitro" diagnostics in medical laboratories. Applera collaborated with General Electric, Abbott Laboratories, Seattle Genetics, and Merck in diagnostics development. The testing itself is performed by Quest Diagnostics. Commercial investment in EV diagnostics and therapeutics also grew during this time. Image fusion has become a common term used within medical diagnostics and treatment. CARS is used for species selective microscopy and combustion diagnostics. It is thus enabling developers to create refactoring and diagnostics tools.