Records of Parkinson's patients treated by Yahr from the late 1960s to the mid-1980s; many, but not all, of these patients appear to have been enrolled in his early clinical trials of L-dopa. In addition, there is a small amount of correspondence with pharmaceutical companies and about 50 reels of film.
Also included are records of patients with epidemic encephalitis ("encephalitis lethargica") seen by members of the Matheson Commission on Epidemic Encephalitis, which was conducted by the Columbia University College of Physicians and Surgeons in the 1930s and 1940s.
The records are stored off-site and will take 1-2 days to retrieve. Researchers must call in advance to use the collection.
Because Protected Health Information (PHI) as defined by the US Health Insurance Portability and Accountability Act (HIPAA) may be found throughout the records, access is allowed only under the terms of Archives and Special Collections’ Access Policy to Records Containing Protected Health Information.
Access to the film is restricted until it can be transferred to a more stable medium.