title: Letter: Letters from our readers.
mesh_terms: D002875:Chromosomes; D000013:Congenital Abnormalities / Q000175:diagnosis / Q000235:genetics; D003811:Dentinogenesis Imperfecta; D003937:Diagnosis, Differential; D005799:Genes, Dominant; D008040:Genetic Linkage; D005838:Genotype; D010641:Phenotype; D012730:Sex Chromosomes; D014059:Tongue / Q000002:abnormalities; D014076:Tooth Diseases / Q000235:genetics*