title: Premutation in achondroplasia.
authors.affiliation: Shodair Children's Hospital, Helena, Montana.
authors.forename: J M
authors.initials: JM
authors.lastname: Opitz
mesh_terms: D000130:Achondroplasia / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D006801:Humans; D007558:Italy; D008297:Male; D009154:Mutation; D010375:Pedigree