1. A pedigree of mental defect showing sex-linkage;Martin;J Neurol Psychiatry,1943
2. A clinical and genetic study of 1280 cases of mental defect, MRC special report 229;Penrose,1938
3. A marker X chromosome;Lubs;Am J Hum Genet,1969
4. X-linked mental retardation without physical abnormality: Renpenning's syndrome;Turner;Dev Med Child Neurol,1971
5. Familial sex-linked mental retardation;Renpenning;Can Med Assoc J,1962