A comparison of visual analog scale and categorical ratings of headache pain in a randomized controlled clinical trial migraine patients

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	ART : 08674 : Not available for external loan
	A comparison of visual analog scale and categorical ratings of headache pain in a randomized controlled clinical trial migraine patients
	English
	20010800
	Elsevier
	Lines, Christopher R. \| Vandormael, Kristel \| Malbecq, William
	Sweden \| Norway \| United Kingdom \| Switzerland \| migraine disorders \| diagnosis \| drug therapy \| treatment outcome \| double-blind method \| pain measurement
	Pain ; vol. 93, no. 2