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Table 7 Header mapping

From: Combination of conditional random field with a rule based method in the extraction of PICO elements

Common header

Mapped header

Total

OBJECTIVE

AIM, OBJECTIVE, BACKGROUND AND OBJECTIVES, CONTEXT, …

37

METHOD

DESIGN, DESIGN AND METHODS, PATIENT(S), INTERVENTION, …

30

RESULTS

FINDINGS, MAIN RESULTS, OUTCOME MEASURES, …

13

CONCLUSION

CONCLUSION, DISCUSSION, IMPLICATIONS, SUMMARY, …

12