ama – AMA manual of style citations
The style covers JAMA, Cancer, and many others. It provides up to 6 authors, or 3 et.al.; titles are in italics, labels are numeric, and sorting is by order of reference.
Free license not otherwise listed, or more than one free license applies
Howard Trickey (inactive)
BibTeX style or style generator
typesetting journals, etc
Maybe you are interested in the following packages as well.
- apasoft: An APA-like style for BibTeX
- aichej: Bibliography style file for the AIChE Journal
- humannat: Bibliography style for "Human Nature" and "American Anthropologist"
- nar: BibTeX style for Nucleic Acid Research