Table 5 A sample phrase in an EHR and their labels.

From: Heart disease risk factors detection from electronic health records using advanced NLP and deep learning techniques

Words

she, has, CAD, and, hypertension

she, has, coronary, artery, disease, and, diabetes

Labels

O, O, I-cad.mention.before_dct, O, I-hypertension.mention.before_dct

O, O, I-cad.mention.before dct, I-cad.mention.before dct, I-cad.mention.before dct, O, I-diabetes.mention.before dct

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