Table 2. Web of Science search.
| ID | Search | Result |
| 1 | ALL=breast cancer | 757,559 |
| 2 | ALL=mastectomy | 34,101 |
| 3 | ALL=breast conserving surgery | 14,276 |
| 4 | ALL=conservative breast surgery | 4,978 |
| 5 | ALL=lumpectomy | 6,555 |
| 6 | #3 OR #4 OR #5 | 20,586 |
| 7 | #1 AND #2 AND #6 | 8,279 |