Research Article
Headache caused by caffeine withdrawal among moderate coffee drinkers switched from ordinary to decaffeinated coffee: a 12 week double blind trial.
British Medical Journal 1990; 300 doi: https://doi.org/10.1136/bmj.300.6739.1558 (Published 16 June 1990) Cite this as: British Medical Journal 1990;300:1558
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