References

All references, including URLs, must be numbered consecutively, in square brackets, in the order in which they are cited in the text, followed by any in tables or legends. Each reference must have an individual reference number. Please avoid excessive referencing. If automatic numbering systems are used, the reference numbers must be finalized and the bibliography must be fully formatted before submission.

Only articles, datasets and abstracts that have been published or are in press, or are available through public e-print/preprint servers, may be cited; unpublished abstracts, unpublished data and personal communications should not be included in the reference list, but may be included in the text and referred to as "unpublished observations" or "personal communications" giving the names of the involved researchers. Obtaining permission to quote personal communications and unpublished data from the cited colleagues is the responsibility of the author. Footnotes are not allowed, but endnotes are permitted.

The commonly cited types of references are shown here, for other types of references such as newspaper items please refer to ICMJE Guidelines or http://www.nlm.nih.gov/bsd/uniform_requirements.html

Examples of the reference style

Article within a journal

Koonin EV, Altschul SF, Bork P. BRCA1 protein products: functional motifs. Nat Genet 1996;13:266-267.

Article within a journal supplement

Orengo CA, Bray JE, Hubbard T, LoConte L, Sillitoe I. Analysis and assessment of ab initio three-dimensional prediction, secondary structure, and contacts prediction. Proteins 1999;43(Suppl 3):149-170.

In press article

Kharitonov SA, Barnes PJ. Clinical aspects of exhaled nitric oxide. Eur Respir J, in press. Published abstract Zvaifler NJ, Burger JA, Marinova-Mutafchieva L, Taylor P, Maini RN: Mesenchymal cells, stromal derived factor-1 and rheumatoid arthritis [abstract]. Arthritis Rheum 1999;42:s250.

Article within conference proceedings

Jones X: Zeolites and synthetic mechanisms. In Proceedings of the First National Conference on Porous Sieves: 27-30 June 1996; Baltimore. Edited by Smith Y. Stoneham: Butterworth-Heinemann; 1996:16-27.

Book chapter, or article within a book

Schnepf E. From prey via endosymbiont to plastids: comparative studies in dinoflagellates. In Origins of Plastids. Volume 2. 2nd edition. Edited by Lewin RA. New York: Chapman and Hall; 1993:53-76.

Whole issue of journal

Ponder B, Johnston S, Chodosh L (Eds). Innovative oncology. In Breast Cancer Res 1998;10:1-72.

Whole conference proceedings

Smith Y (Ed). Proceedings of the First National Conference on Porous Sieves: 27-30 June 1996; Baltimore. Stoneham: Butterworth-Heinemann; 1996.

Complete book

Margulis L. Origin of Eukaryotic Cells. New Haven: Yale University Press; 1970.

Monograph or book in a series

Hunninghake GW, Gadek JE. The alveolar macrophage. In Cultured Human Cells and Tissues. Edited by Harris TJR. New York: Academic Press; 1995:54- 56. [Stoner G (Series Editor): Methods and Perspectives in Cell Biology, vol 1.]

Book with institutional author

Advisory Committee on Genetic Modification: Annual Report. London; 1999. PhD thesis Kohavi R: Wrappers for performance enhancement and oblivious decision graphs.

PhD thesis

Stanford University, Computer Science Department; 1995. Link / URL TheMouse Tumor Biology Database [http://tumor.informatics.jax.org/mtbwi/index.do]

Link / URL with author(s)

Neylon C: Open Research Computation: an ordinary journal with extraordinary aims. [http://blogs.openaccesscentral.com/blogs/bmcblog/entry/open_research_comp utation_an_ordinary]

Preparing illustrations and figures

Illustrations should be provided as separate files, not embedded in the text file. Each figure should include a single illustration and should fit on a single page in portrait format. If a figure consists of separate parts, it is important that a single composite illustration file be submitted which contains all parts of the figure. (There is no charge for the use of color figures)

Formats

The following file formats can be accepted
1. PNG (preferred format for photos or images)
2. TIFF
3. JPEG
4. BMP

Figure legends

The legends should be included in the main manuscript text file at the end of the document, rather than being a part of the figure file. For each figure, the following information should be provided: Figure number (in sequence, using Arabic numerals - i.e. Figure 1, 2, 3 etc); short title of figure (maximum 15 words); detailed legend, up to 300 words. Please note that it is the responsibility of the author(s) to obtain permission from the copyright holder to reproduce figures or tables that have previously been published elsewhere.

The image may either be a figure from your manuscript or another relevant image. You must have permission from the copyright to reproduce the image. Images that do not meet our requirements will not be used. Image can be used by the journal for the cover page and other journal website designs purposes.

Images must be 300dpi and 155mm square (1831 x 1831 pixels for a raster image). Allowable formats - JPEG, BMP, DOC.