S1.jpg Today

: This image usually contains supporting data—like extra graphs, gel electrophoresis images , or microscopy findings —that provide evidence for a study but aren't central enough for the main text.

: Mention it as "Supplementary Figure 1" or "Fig. S1" within parentheses. s1.jpg

: Some archival files, such as handwritten letters or signatures , are digitized with this filename. How to Cite "s1.jpg" in a Paper : This image usually contains supporting data—like extra