Qualitative studies
| Method | Country | Number of health professionals | Year | Reference |
|---|---|---|---|---|
| Focus group interviews and questionnaires* | Hong Kong | 510 | 2007 | 17 |
| Questionnaires* | Australia | 129 | 2002 | 16 |
| Interviews | UK | 40 | 2008 | 18 |
| Interviews | Australia | 12 | 2005 | 19 |
| Focus groups | UK | 25 | 2010 | 20 |
| Focus group interviews | New Zealand | 19 | 2009 | 21 |
| Questionnaires | Taiwan | 85 | 2008 | 25 |
| Questionnaires | Australia | 185 | 2010 | 26 |
| Questionnaires | UK | 35 | 2007 | 24 |
| Questionnaires | UK | 328 | 1991 | 22 |
| Questionnaires | Australia | 124 | 2007 | 23 |
↵* Additional limited quantitative data.