I know my body ,for four years i have suffered excruciating pain from my head to my feet had numerous Xray. MRI'S have seen DRS always getting different answers. Finally a Dr whom I truly respect and trust referred me to Dr John P. A total game changer, I felt confident with the use of the DMX (digital motion xray) I know I am seriously restricted with the movement of my neck, back, legs this machine shows my limits, records my limits.I highly recommend this service. Dr P and his wife were very thorough.