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Roman Numerals 

Numbers and Percentages

Stephen J. Lurie

and Margaret A. Winker

Use roman numerals with proper names (eg, Henry Ford III). Note that no comma is used before the numeral. However, arabic numerals should be used as designators in all other cases (eg, round 2, Table , year 5; see also , Capitalization, Designators) unless roman numerals are part of formally established nomenclature (see , Nomenclature). Use roman numerals for cancer stages and arabic numerals for cancer grades (see also , Nomenclature, Cancer). In pedigree charts, use roman numerals to indicate generations and arabic numerals to indicate families or individual family members (see also Pedigrees in , Visual Presentation of Data,

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