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APA Citation
Goodwin, M. A., Stange, K. C., Zyzanski, S. J., Crabtree, B. F., Borawski, E. A., & Flocke, S. A. (2017). the Hawthorne effect in direct observation research with physicians and patients. Journal of evaluation in clinical practice, 23(6), 1322–1328. http://access.bl.uk/ark:/81055/vdc_100054972287.0x000021