… with lumbar spinal stenosis. Cathy's postdoctoral research included using large data systems (Medicare claims and Veteran's of the United States armed forces) to … barriers and facilitators to physical therapy care using Partner's Healthcare data. Cathy is collaborating with MGH PT colleagues to identify factors associated … Research Agenda at the APTA Combined Sections Meeting. Harnessing Administrative Data to Examine Rehabilitation Use and Outcomes in High Need Patient Populations at …