1. Multiple sclerosis from the standpoint of geographic distribution and race;Davenport;Arch. Neurol. Psychiat.,1922
2. The geographic distribution of multiple sclerosis and its estimated prevalence in the United States;Limburg,1950
3. Certification of multiple sclerosis as a cause of death;Kurland;J. Amer. med. Ass.,1951
4. The frequency and geographic distribution of multiple sclerosis as indicated by mortality statistics and morbidity surveys in the United States and Canada;Kurland;Amer. J. Hyg.,1952
5. Studies on multiple sclerosis in Winnipeg, Manitoba, and New Orleans, Louisiana;Westlund;Amer. J. Hyg.,1953