Single panel Figures are typically equivalent to a half page and multi-panel Figures are equivalent to a full page. Tables will be assessed for size as they are presented in the submission.
A. First page. Begin by double spacing between the following four items: article title, authors, affiliations, and "Correspondence to" author's name.
这个是在4个项目间双倍行距还是4个项目的内容都要双倍行距?