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Table 11 RBM results on missed abstracts

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

  P I
Unstructured abstract extraction 28 abstracts 28 abstracts
Structured abstract extraction 10 abstracts 14 abstracts
Missed 15 abstracts 7 abstracts
N/A (not applicable) 9 abstracts 55 abstracts
Total 62 104