title: Observations suggesting allelism of the achondroplasia and hypochondroplasia genes.
mesh_terms: D000130:Achondroplasia / Q000000981:diagnostic imaging / Q000235:genetics*; D000328:Adult; D000483:Alleles; D005260:Female; D005799:Genes, Dominant; D006720:Homozygote; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010641:Phenotype; D011859:Radiography