Formatting APS Journal Articles
Supplemental Material contains data for the paper that is, in general, either too complex or unsuited for publishing in print. This includes large datasets (such as extensive tables, gene sequences, or complex coded sequences) and nonprintable material (such as video clips and movies). However, this may also include simpler-looking figures and/or tables that the reviewers or authors have otherwise determined as supplemental to the text. If an author has designated certain materials as supplemental, chances are good that the reviewer or editor requested that it be included as such, even if at first glance it looks like it could be included in the final article. If you are unsure about a particular set of Supplemental Material, inquire with the author.
Supplemental Material is indicated in RPM with an icon (an "S" with a circle around it). As the Copy Editor, you are responsible for making sure that APS has the necessary Supplemental Material available, and the Online Production Editor (Mike Gentry) should be made aware of its existence during check-in stage.
There are two ways to call the reader's attention to the presence of Supplemental Material in the text. Both of them use the following statement: "Supplemental Material for this article is available online at the Journal website."
If the author has specifically mentioned Supplemental Material in the text, then the citation can be followed by a parenthetical comment. If the author has only mentioned part of the Supplemental Material (for example, "see Supplemental Fig. S1"), then call the reader's attention to the fact that there is Supplemental Material in general (by changing the text to read, for example, "see Supplemental Material, Supplemental Fig. S1").
NB: callouts to supplemental figures and tables must always be numbered "S1, S2, S3," etc. If you forget the S, it can cause linking problems when the paper is published online.
You also have to option of creating a footnote; it's your preference. The footnote should be placed at the end of the sentence that first mentions the Supplemental Material. The code «fnc#», where # is the footnote number, is used to call out a footnote in the Toolkit, and the «fn» code at the end of the text (by the correspondence address) should have the requisite website statement above.
If the author has not referenced their Supplemental Material anywhere in the text but there is Supplemental Material for the article availabe, then use the footnote method to cite it. The footnote callout should be placed right after the after the abstract line.