| Original language | English |
|---|---|
| Number of pages | 1 |
| Journal | British Medical Journal |
| Volume | 306 |
| Issue number | 6888 |
| State | Published - Jan 1 1993 |
| Original language | English |
|---|---|
| Number of pages | 1 |
| Journal | British Medical Journal |
| Volume | 306 |
| Issue number | 6888 |
| State | Published - Jan 1 1993 |