| #1 | Saffron |
| #2 | Crocus sativus |
| #3 | Crocetin |
| #4 | MeSH descriptor: [Saffron] explode all trees |
| #5 | MeSH descriptor: [Crocus sativus] explode all trees |
| #6 | MeSH descriptor: [Crocetin] explode all trees |
| #7 | Insomnia |
| #8 | Difficulty in sleeping |
| #9 | Disorder of sleep initiation and maintenance |
| #10 | Sleep initiation and maintenance disorder |
| #11 | Sleep-wake disorder (SWD) |
| #12 | MeSH descriptor: [Insomnia] explode all trees |
| #13 | MeSH descriptor: [Difficulty in sleeping] explode all trees |
| #14 | MeSH descriptor: [Disorder of sleep initiation and maintenance] explode all trees |
| #15 | MeSH descriptor: [Sleep initiation and maintenance disorder] explode all trees |
| #16 | MeSH descriptor: [Sleep-wake disorder] explode all trees |
| #17 | MeSH descriptor: [SWD] explode all trees |
| #18 | #1 OR #2 OR #3 OR #4 OR #5 OR #6 |
| #18 | #7 OR #8 OR #9 OR #10 OR #11 OR #12 OR #13 OR #14 OR #15 OR #16 OR #17 |
| #19 | #18 AND #19 |