Sarcoglycanopathies are responsible for 68% of severe autosomal recessive limb-girdle muscular dystrophy in the brazilian population - Vainzof, Mariz; Passos-Bueno, Maria Rita; Pavanello, Rita C. M; Oliveira, Acary S. B.; Zatz, Mayana; Marie, Suely Kazue Nagahashi (Journal of the Neurological Sciences, 1999)