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In English-language titles, capitalize only (1) the first letter of the first word, (2) proper names, and (3) abbreviations that are ordinarily capitalized (eg, DNA, EEG, VDRL). Do not enclose article and book chapter titles in quotation marks. However, if a book, book chapter, or article title contains quotation marks in the original, retain them as double quotation marks (unless both double and single quotation marks are used). In English-language titles, italicize the titles of books, government bulletins, documents, and pamphlets and capitalize the first letter of each major word. Do not capitalize articles, prepositions of 3 or fewer letters, Less

In all titles, follow the style recommended for capitalization and use of italics in scientific names of organisms (see , Capitalization, Proper Nouns, Organisms, and , Nomenclature, Organisms and Pathogens). Use roman type for genus and species names in book titles. | Less

In all titles, follow the guidelines recommended for use of italics or roman in non English words and phrases (see , Non English Words, Phrases, and Accent Marks, Non English Words, Phrases, and Titles, Use of Italics). For example, even if In Vivo or In Vitro were set italic in a cited title, JAMA and the Archives Journals would set these in roman type. | Less

In non English-language titles, capitalization does not necessarily follow the same rules as in English-language titles. For example, in German titles (both articles and books), all nouns and only nouns are capitalized; typically, in French, Spanish, and Italian book titles, capitalize only the first word, proper names, and abbreviations that are capitalized in English. As with English-language books, government bulletins, documents, and pamphlets, italicize the title. Non English-language titles may be given as they originally appeared, without translation: 1. Richartz E, Schott KJ, Wormstall H. Psychopharmakotherapie bei Demenzerkrankungen. Dtsch Med Wochenschr. 2004;129(25/26):1434-1440. 2. Ohayon MM. Prevalencia y factores de riesgo Less

In titles of articles, books, parts of books, and other material, retain the spelling, abbreviations, and style for numbers used in the original. Note: Numbers that begin a title are spelled out (although exceptions are made for years; see , Manuscript Preparation, Titles and Subtitles, Numbers). | In English-language titles, capitalize only (1) the first letter of the first word, (2) proper names, and (3) abbreviations that are ordinarily capitalized (eg, DNA, EEG, VDRL). Do not enclose article and book chapter titles in quotation marks. However, if a book, book chapter, or article title contains quotation marks in the original, Less