Table 1 Details of electronic bibliographic database search strategies
| Ovid MEDLINE | |
|---|---|
| 1 | Exp Hemangiosarcoma/ |
| 2 | Hemangiosarcoma.tw |
| 3 | Exp Vascular neoplasms/ |
| 4 | Angiosarcoma.mp |
| 5 | Angiosarcoma.tw |
| 6 | 1 or 2 or 3 or 4 or 5 |
| 7 | Pulmonary.mp |
| 8 | Pulmonary.tw |
| 9 | Exp Lung/ |
| 10 | Lung.mp |
| 11 | 6 or 7 or 8 or 9 |
| 12 | 6 and 11 |