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APA Citation
Freund, Y., Rousseau, A., Guyot-Rousseau, F., Claessens, Y., Hugli, O., Sanchez, O., Simon, T., & Riou, B. (2015). pERC rule to exclude the diagnosis of pulmonary embolism in emergency low-risk patients: study protocol for the PROPER randomized controlled study. Trials, 16(1), 1–8. http://access.bl.uk/ark:/81055/vdc_100080354133.0x000078