Marinos C. Dalakas, Gregory Elder, Mark Hallett, John Ravits, Michael Baker, Nicholas Papadopoulos, Paul Albrecht, John Sever,
A Long-Term Follow-up Study of Patients with Post-Poliomyelitis Neuromuscular Symptoms The New England Journal of Medicine. ,vol. 314, pp. 959- 963 ,(1986) ,
10.1056/NEJM198604103141505