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Table 2 MeSH subheading distribution in MEDLINE

From: Automatic inference of indexing rules for MEDLINE

Irritable Mood

Lung (excerpt)

5 allowable qualifiers

26 allowable qualifiers

subheading

P

subheading

P

no subheading

0.758

no subheading

0.047

classification

0.008

classification

0

drug effect

0.129

drug effect

0.082

ethics

0

metabolism

0.117

physiology

0.101

pathology

0.171

radiation effect

0.004

radiation effect

0.011