1. New problems in old polio patients: results of a survey of 539 polio survivors;Halstead;Orthopedics,1985
2. Poliomyelitis in Rochester, Minnesota, 1935–1955: epidemiology and long-term sequelae: a preliminary report;Codd,1985
3. A long-term follow-up study of patients with post-poliomyelitis neuromuscular symptoms;Dalakas;N Engl J Med,1986
4. Late effects of poliomyelitis;Cosgrove;Arch Phys Med Rehabil,1987
5. Post-polio syndrome: clinical experience with 132 consecutive outpatients;Halstead,1987