Nomenclature

Do not use an abbreviation and the full word interchangeably. Give the full name where it first appears, and enter the abbreviation in parentheses. Then use the abbreviation. The exception is: using the abbreviation in a subtitle. If you used full words and abbreviations in the abstract, they have to appear once again in the main text.

Check whether the spelling of the phrase is uniform in all places. If doubted, check the sources to see how specific phrases are entered.

Example:

• Mentioned for the first time […] pulmonary function test (PFT).
• Mentioned for the second time, and so on: […] PFT […].