Comments on Ward et al., PAIN, 44 (1991) 151-155
- PMID: 1454396
- DOI: 10.1016/0304-3959(92)90018-7
Comments on Ward et al., PAIN, 44 (1991) 151-155
Comment on
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The analgesic effects of caffeine in headache.Pain. 1991 Feb;44(2):151-155. doi: 10.1016/0304-3959(91)90129-L. Pain. 1991. PMID: 2052380 Clinical Trial.
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