Box 18Titles containing a Greek letter, chemical formula, or another special character

  • Capitalize the first word of a database title unless the title begins with a Greek letter, chemical formula, or another special character that might lose its meaning if capitalized
    • 1,3-dichloro-5,5-dimethylhydantoin
    • 12-Lead ECG interpretation
    • von Willebrand disease database
  • Retain special characters in titles when possible
    • Pharm-line®
  • If a title contains a Greek letter or some other symbol that cannot be reproduced with the type fonts available, substitute the name for the symbol. For example, Ω becomes omega.
    • Database of β-amino acids
    • may become
    • Database of beta-amino acids
  • If a title contains superscripts or subscripts that cannot be reproduced with the type fonts available, place the superscript or subscript in parentheses
    • TiO2 nanoparticles
    • may become
    • TiO(2) nanoparticles

From: Chapter 20, Databases on CD-ROM, DVD, or Disk

Cover of Citing Medicine
Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition.
Patrias K, author; Wendling D, editor.
Bethesda (MD): National Library of Medicine (US); 2007-.

NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.