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Q33561256-98169696-589F-4B5C-925A-858E0207045E
Q33561256-98169696-589F-4B5C-925A-858E0207045E
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33561256-98169696-589F-4B5C-925A-858E0207045E
Methodological issues in epidemiological studies of periodontitis--how can it be improved?
P2860
Q33561256-98169696-589F-4B5C-925A-858E0207045E
BestRank
Statement
http://www.wikidata.org/entity/statement/Q33561256-98169696-589F-4B5C-925A-858E0207045E
rank
NormalRank
type
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Statement
wasDerivedFrom
6ef16b298c43bfabd60d723b8d89ae5e0c30abdc
P2860
The extent and severity index: a simple method for use in epidemiologic studies of periodontal disease.