1.
BMJ
; 348: g2027, 2014 Mar 07.
Article
in English
| MEDLINE
| ID: mdl-24610005
2.
BMJ
; 347: f7472, 2013 Dec 16.
Article
in English
| MEDLINE
| ID: mdl-24342714
3.
BMJ
; 347: f4933, 2013 Aug 07.
Article
in English
| MEDLINE
| ID: mdl-23926318