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. Author manuscript; available in PMC: 2018 Apr 10.
Published in final edited form as: Stud Health Technol Inform. 2017;245:950–954.

Table 1.

Structured Output of Entity and Attribute in EC

NCT00000171
Exclusion Criteria:
Sleep disturbance is acute (within the last 2 weeks).
Condition present Sleep disturbance T0
Qualifier present acute T1
Temporal constraints present within the last 2 weeks T2