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The crossover design for migraine preventives: an analyses of four randomized placebo-controlled trials
Jenssen, Astrid Bjørke, Stovner, Lars Jacob, Tronvik, Erling, Sand, Trond, Helde, Grethe, Gravdahl, Gøril Bruvik, Hagen, KnutVolume:
20
Journal:
The Journal of Headache and Pain
DOI:
10.1186/s10194-019-1067-z
Date:
December, 2019
File:
PDF, 896 KB
2019