| Original language | English |
|---|---|
| Article number | c3169 |
| Pages (from-to) | 1319 |
| Journal | Bmj |
| Volume | 340 |
| Issue number | 7760 |
| DOIs | |
| Publication status | Published - 19 Jun 2010 |
Authors' reply
Sheila Bird, John Harris
Research output: Contribution to journal › Article › peer-review