- Publication venue
- 'Ovid Technologies (Wolters Kluwer Health)'
- Publication date
- 01/10/2003
- Field of study
- Publication venue
- 'Elsevier BV'
- Publication date
- 16/07/2004
- Field of study
- Publication venue
- BMJ Group
- Publication date
- 12/11/2004
- Field of study