See here:
- Instructions for Authors can be found on the website of each journal. Click on "Journal Information" in the top banner beside the journal name and then choose "Author Information" from the drop down menu.
- A Word-template of an article compatible with journals from JMIR Publications can be downloaded from https://asset.jmir.pub/assets/public/InstructionsForAuthorsOfJMIR.docx.
- Note that the references can be in any format, as long as the in-text citations are sequentially numbered in the manuscript with square brackets and as long as the reference at the end has a PMID in the format PMID:123456. See How should references be formatted?