has material basis in congenital muscular dystrophy autosomal recessive disease congenital muscular dystrophy with rapid progression DOID:0061202 disease_ontology A congenital muscular dystrophy characterized by hypotonia and poor feeding apparent in infancy, delayed motor development with poor head control and inability to sit or walk, progressive weakness and lethargy, and respiratory insufficiency that has_material_basis_in homozygous or compound heterozygous mutation in the BET1 gene on chromosome 7q21. MIM:254100 autosomal recessive inheritance