@techreport{NBERw13304, title = "Clinical Pathways to Disability", author = "Mary Beth Landrum and Kate A. Stewart and David M. Cutler", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "13304", year = "2007", month = "August", URL = "http://www.nber.org/papers/w13304", }