Table 2.

The 8 major topics in the FOCUS^a corpus.

UMLSb semantic type	Number of important terms, n	Example terms
Disease or syndrome	295	autoimmune hemolytic anemia, gastroesophageal reflux, pancytopenia, Sjogren's syndrome, osteoporosis
Organic chemical	88	atenolol, vincristine, warfarin, Wellbutrin, Zocor
Finding	59	alopecia, hematuria, hypertension, NSTEMI (non-ST-elevation myocardial infarction), retinopathy
Neoplastic process	35	dermoid, large B cell lymphoma, pancreatic neoplasm, thyroid nodule
Therapeutic or preventive procedure	34	chemotherapy, dialysis, immunosuppression, kidney transplantation, pancreatectomy
Amino acid, peptide, or proteinc	30	basal insulin, Rituxan, Neupogen, Synthroid, hemoglobin A1C, HPL (human placental lactogen)
Pathologic function	25	atrial fibrillation, autonomic dysfunction, BPH (benign prostatic hyperplasia), microscopic hematuria, systolic dysfunction
Diagnostic procedure	17	thyroid ultrasound, echocardiogram, endoscopy, biopsy, cardiac catheterization

^aFOCUS: Finding impOrtant medical Concepts most Useful to patientS.

^bUMLS: Unified Medical Language System.

^cElectronic health record terms in this topic were split into 2 subtopics: medicine (denoted by their ingredients) and laboratory measure.