[1] IGBMC, Illkirch Graffenstaden, France
[2] Fac Med, Med Genet Lab, Strasbourg, France
[3] NIFESP EPM, Sao Paulo, Brazil
[4] Univ Helsinki, Folkhalsan Inst Genet, Helsinki, Finland
[5] Hospices Civils Strasbourg, Dept Neurol, Strasbourg, France
[6] Odense Univ Hosp, DK-5000 Odense, Denmark
[7] Univ Witwatersrand, Natl Hlth Lab Serv, Johannesburg, South Africa
[8] Sahlgrens Univ Hosp, Gothenburg, Sweden
[9] Univ Ferrara, Muscle Unit, I-44100 Ferrara, Italy
[10] UNIFESP EPM, Sao Paulo, Brazil