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Number of scientific articles retrieved and selected
| Number of articles retrieved | Number of articles selected | Number of articles retrieved manually | |||
|---|---|---|---|---|---|
| PubMed | Ichushi | PubMed | Ichushi | ||
| (1) Endoscopic treatment | 1102 | 539 | 136 | 73 | 81 |
| (2) Surgical treatment | 3351 | 2521 | 926 | 192 | 82 |
| (3) Radiotherapy | 1225 | 181 | 271 | 16 | 67 |
| (4) Systematic therapy | 2019 | 1381 | 591 | 108 | 242 |
| (5) Others | 1975 | 1530 | 374 | 86 | 44 |
| Total | 9672 | 6153 | 2304 | 475 | 516 |
