| First Author | Epstein CJ | Year | 1969 |
| Journal | Science | Volume | 163 |
| Issue | 3871 | Pages | 1078-9 |
| PubMed ID | 5764873 | Mgi Jnum | J:5101 |
| Mgi Id | MGI:53579 | Doi | 10.1126/science.163.3871.1078 |
| Citation | Epstein CJ (1969) Mammalian oocytes: X chromosome activity. Science 163(871):1078-9 |