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Table 1 Illustration of case abstraction method. The first column is findings from a case of Parkinson disease in Neuroanatomy through Clinical Cases [47] and is reproduced with the permission of the author. The second column is the abstractor’s interpretation of the finding, and the third column is the UMLS CUI [24]

From: Evaluation of standard and semantically-augmented distance metrics for neurology patients

Original Finding

Interpretation

CUI

“micrographia”

micrographia

C0240341

“mask-like decreased facial expression”

mask-like facies

C0424448

“asymmetrical bradykinesia”

bradykinesia

C0233565

“cogwheel rigidity”

cogwheel rigidity

C0151564

“en bloc turning”

difficulty turning body

C0555095

“Exhibited retropulsion of two steps when pulled gently backward”

retropulsion

C0277845

“no extinction of the glabellar reflex (Myerson sign)”

Myerson sign

C4293666

“4 Hz tremor of the head and all extremities, worse at rest”

resting tremor

C0234379

“Slow, stiff gait with stooped posture, short steps, decreased arm swing”

decreased arm swing

C2938985

stooped posture

C4476759

slow gait

C1851908

marche a petit pas

C0427169