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APA Citation
Lomotan, E. A., Michel, G., Lin, Z., & Shiffman, R. N. (2010). how "should" we write guideline recommendations? Interpretation of deontic terminology in clinical practice guidelines: survey of the health services community. Quality & safety in health care, 19(6), 509–513. http://access.bl.uk/ark:/81055/vdc_100144732546.0x00001c