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APA Citation
Robbins, M. S., Kuruvilla, D., Blumenfeld, A., Charleston, L., Sorrell, M., Robertson, C. E., Grosberg, B. M., Bender, S. D., Napchan, U., & Ashkenazi, A. (2014). trigger Point Injections for Headache Disorders: Expert Consensus Methodology and Narrative Review. Headache, 54(9), 1441–1459. http://access.bl.uk/ark:/81055/vdc_100042690699.0x000055