Table 1.
Preliminary search strategy for MEDLINE
| Search | Query | Results |
|---|---|---|
| #7 | Search: #6 NOT (animals [mh] NOT humans [mh]) | 924 |
| #6 | Search: (#1 AND ((#2 AND #3) OR #4)) AND #5 | 929 |
| #5 | Search: random*[tiab] OR RCT[tiab] OR “Randomized Controlled Trial”[pt] OR “Randomized Controlled Trials as Topic”[Mesh] OR “Clinical Trial”[pt] OR “Clinical Study” [pt] OR “Controlled Clinical Trials as Topic”[Mesh] OR “Observational study” [pt] OR “Comparative Study” [Publication Type] OR “Multicenter Study”[Publication Type] OR “controlled study”[tiab] OR group*[tiab] OR cohort*[tiab] OR “Control Groups”[Mesh] OR “Prospective Studies”[Mesh] OR control[tiab] OR controls[tiab] OR versus[tiab] OR compar*[tiab] OR matched[tiab] | 11,653,482 |
| #4 | Search: “double tract”[tiab] or “double-tract”[tiab] or “two tract”[tiab] or “two-tract”[tiab] OR DTR [tiab] | 1113 |
| #3 | Search: proximal[tiab] | 224,119 |
| #2 | Search: gastrectom*[tiab] OR “Gastrectomy”[Mesh] | 49,888 |
| #1 | Search: ((gastric*[tiab] OR stomach[tiab] OR gastrointestinal*[tiab] OR gastro-oesophageal*[tiab] OR gastrooesophageal*[tiab] OR gastro-esophageal*[tiab] OR gastroesophageal*[tiab] OR esophagogastric*[tiab]) AND (cancer[tiab] OR carcinoma*[tiab] OR adenocarcinoma*[tiab] OR neoplas*[tiab] OR tumor[tiab] OR tumors[tiab] OR tumour*[tiab] OR malignan*[tiab])) OR “Stomach Neoplasms”[Mesh] | 218,033 |