Formerly CBE (Council of Biology Editors).
ICMJE (International Committee of Medical Journal Editors). Formally known as the Uniform Requirement for Manuscripts Submitted to Biomedical Journals (URM).
The recommended ICMJE style for references is based on the National Information Standards Organization NISO Z39.29-2005 (R2010) Bibliographic References as adapted by the National Library of Medicine for its databases. Detailed guidelines on formatting citations are available in the following free ebook from the National Library of Medicine: