. "disease_ontology"^^ . _:vb50945595 . "DOID:0111849"^^ . "An osteogenesis imperfecta characterized by osteopenia, skeletal deformity, and both healed and new fractures on radiography that has_material_basis_in homozygous or compound heterozygous mutation in MESD on chromosome 15q25.1."^^ . _:vb50945595 . . . _:vb50945595 . "osteogenesis imperfecta type XX"^^ . . _:vb50945595 . "OI20"^^ . "osteogenesis imperfecta type 20"^^ . "OMIM:618644"^^ . _:vb50945595 .