title: Establishing prevalence in rare neuromuscular diseases: A lesson from congenital myopathies.
authors.affiliation: Department of Neurology, Washington University School of Medicine, St. Louis, MO.
authors.forename: Ahmed K
authors.initials: AK
authors.lastname: Bamaga
authors.affiliation: Department of Neurology, Washington University School of Medicine, St. Louis, MO.
authors.forename: Conrad C
authors.initials: CC
authors.lastname: Weihl