Tip #18: How to Float a Subheading in EBSCO's CINAHL
by Andy Hickner Like MEDLINE and Embase, CINAHL's thesaurus includes optional subheadings. The syntax is as follows: MW "[2-letter subheading abbreviation]". For example, the syntax for the floating subheading "prevention and control" is MW "PC" (you can substitute MJ if for some reason you want to search for this subheading only in combination with a major heading). Here's what this might look like in a search for articles about prevention of catheter-associated urinary tract infection: The floating subheading is line S8, combined with equivalent keywords in S10, and finally combined with CAUTI elements in S11. Further information: Advanced Searching with CINAHL® Subject Headings . Update: A reader asked me where to find the list of available subheadings. As usual with EBSCOhost, it is incredibly difficult to locate the CINAHL Database Information, so I am copy-pasting the list here: Code Subheading AB Abnormalities AM Administration