Table 1 Search queries and results for PubMed and ScienceDirect database
Search | Query | Records found | |
|---|---|---|---|
PubMed | ScienceDirect | ||
1 | Search ((esophagus) AND malignancy) AND stent | 753 | 69 |
2 | Search (esophageal dysphagia) AND metallic stent | 251 | 40 |
3 | Search (esophageal dysphagia) AND palliative treatment | 1293 | 104 |
4 | Search (esophageal dysphagia) AND stent | 1158 | 254 |
5 | Search (esophageal cancer) AND metallic stent | 398 | 51 |
6 | Search (esophageal cancer) AND palliative treatment | 3010 | 195 |
7 | Search (esophageal cancer) AND stent | 1821 | 312 |