Group, E. S. o. D. i. E. C. (2000). A prevalence study of primary dystonia in eight European countries.
Chicago-viite (17. p.)Group, Epidemiological Study of Dystonia in Europe Collaborative. A Prevalence Study of Primary Dystonia in Eight European Countries. 2000.
MLA-viite (9. p.)Group, Epidemiological Study of Dystonia in Europe Collaborative. A Prevalence Study of Primary Dystonia in Eight European Countries. 2000.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.