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APA Citation
Steurer, J., Held, U., Schmid, D., Ruckstuhl, J., & Bachmann, L. M. (2010). clinical value of diagnostic instruments for ruling out acute coronary syndrome in patients with chest pain: a systematic review. Emergency medicine journal, 27(12), 896–902. http://access.bl.uk/ark:/81055/vdc_100135545081.0x00000f