Search strategy for EMBASE
| Database | Search strategy | |
| Embase | #1 | ‘headache*’:ti,ab OR ‘cephalgia*’:ti,ab OR ‘cephalalgia*’:ti,ab OR ‘cranialgia*’:ti,ab OR ‘head ache*’:ti,ab OR ‘cephalodynia*’:ti,ab OR ‘cephalea*’:ti,ab OR ‘cerebral pain’:ti,ab OR ‘head pain’:ti,ab OR ‘eye pain’:ti,ab |
| #2 | ‘neuroimaging’:ti,ab OR ‘brain imaging’:ti,ab OR ‘tomography’:ti,ab OR ‘mri’:ti,ab OR ‘magnetic resonance imaging’:ti,ab OR ‘mr imaging’:ti,ab OR ‘nmr imaging’:ti,ab | |
| #3 | #1AND #2 | |
| Restrict to humans | #4 | #3 AND ‘human’/de |
| Filter by type of study | #5 | #4 AND (‘clinical study’/de OR ‘clinical trial’/de OR ‘cohort analysis’/de OR ‘comparative study’/de OR ‘controlled clinical trial’/de OR ‘controlled study’/de OR ‘family study’/de OR ‘major clinical study’/de OR ‘medical record review’/de OR ‘observational study’/de OR ‘prospective study’/de OR ‘randomized controlled trial’/de OR ‘retrospective study’/de OR ‘systematic review’/de) |