| First Author | Johnson DR | Year | 1967 |
| Journal | J Embryol Exp Morphol | Volume | 17 |
| Issue | 3 | Pages | 543-81 |
| PubMed ID | 6049666 | Mgi Jnum | J:5049 |
| Mgi Id | MGI:53528 | Doi | 10.1242/dev.17.3.543 |
| Citation | Johnson DR (1967) Extra-toes: a new mutant gene causing multiple abnormalities in the mouse. J Embryol Exp Morphol 17(3):543-81 |