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. 2017 Sep 1;7(9):e015854. doi: 10.1136/bmjopen-2017-015854

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Percentage concordant answers per group. Values are mean percentages ± SD. Medical students versus internists, p<0.001; 95% CI 6.96 to 22.59, medical students versus medical residents, p=0.009; 95% CI 1.10 to 18.28, medical residents versus internists, p=0.321; 95% CI −5.36 to 15.53 . p Values<0.05 were considered statistically significant (*).