| Search | Query | Items Found |
| #1 MeSH #2 Natural Term |
“Nurses” [MeSH Terms] | 99,829 |
| “nurse” [Title/Abstract] | 331,507 | |
| #3 | #1 OR #2 | 373,814 |
| #4 MeSH | “COVID-19” [MeSH Terms] | 252,446 |
| #5 Natural Term | “experience” [Title/Abstract] | 852,298 |
| #6 MeSH | “korea” [MeSH Terms] | 59,960 |
| #7 | #3 AND #4 AND #5 AND #6 | 6 |