| Original language | English |
|---|---|
| Pages (from-to) | 172 |
| Journal | Nature |
| Volume | 295 |
| Issue number | 5845 |
| Publication status | Published - 14 Jan 1982 |
Keywords / Materials (for Non-textual outputs)
- Female
- Humans
- Infant
- Male
- Pregnancy
- Statistics as Topic
- Twins
- Twins, Dizygotic
- Twins, Monozygotic