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Search strategy for study-related articles.
| Serial # | Keywords | PubMed | Scopus | WOS | MDPI |
|---|---|---|---|---|---|
| 1 | Smoking and oral health | 184 | 910 | 777 | 36 |
| 2 | Smoking effects on oral health | 134 | 223 | 140 | 05 |
| 3 | Cigarette smoking | 1186 | 460 | 508 | 421 |
| 4 | Smoking and tobacco use | 2192 | 678 | 397 | 249 |
| Total articles retrieved | 3696 | 2271 | 1822 | 711 | |
| Removal of duplicate articles | 972 | 657 | 507 | 120 | |
