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Manuscript Submission Guidelines
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The California DO

The official journal of the Osteopathic Physicians & Surgeons of California Association (OPSC) 

The California DO [CADO] only accepts submissions electronically. Authors may e-mail manuscripts and accompanying materials to Please submit only one manuscript set per email sent.
The CADO does not require authors to provide hard copies of manuscripts. However, authors are required to have electronic or hard copies of all materials cited in their manuscripts. Failure to make these materials available upon request during the publication process may result in delayed publication.

Manuscripts should be formatted in Microsoft Word (.doc or .docx), text document format (.txt), or rich text format (.rtf). For specifications regarding electronically generated graphic elements, consult the section titled "Graphic Elements" in these guidelines. 

Please note that acceptance of a submission by OPSC staff does not guarantee publication in the current or any future issue of the California DO or any other medium used by OPSC.

Graphic Elements

All accompanying tables and figures should be numbered, and they should be cited sequentially in the text.

Table headings should appear on the tables themselves. Labeled captions for figures, including illustrations, should be provided at the end of the manuscript. A full bibliographic citation should be provided in each caption for reprinted or adapted graphic element.

All patient information must be removed from or blocked out of graphic elements. Radiologic images in particular should be checked for patient information before being submitted to the CADO.

Please note that although charts created in Microsoft Excel (.xls), Microsoft PowerPoint (.ppt), or Microsoft Word (.doc) can be used in the peer-review process, once manuscripts are accepted for publication, CADO staff cannot use these files for production purposes. The CADO must recreate charts submitted in these formats before publication to ensure that the images are of reproduction quality. Authors, therefore, must provide data points on photocopies of charts if they are not accessible in the submitted formats. Subsequently, manuscripts that require these additional steps in the production phase may need to be rescheduled accordingly on the CADO's editorial calendar. Failure to provide data points on request may delay publication.

  • Electronic tables—Authors should not insert, embed, or copy any graphic elements into word-processed manuscripts. Instead, they should prepare graphic elements as separate documents.
  • Electronic line art and charts—Although electronic line art saved in encapsulated postscript format (.eps), such as Adobe Illustrator and Adobe Photoshop documents, is preferred for production purposes, .eps files cannot be used for review purposes. Therefore, authors who submit .eps files should also submit electronic line art in an alternate format, such as .pdf. Files saved to joint photographic experts group format (.jpg or .jpeg) can be used for both production and review purposes. Any artwork that is not prepared in .eps or .jpg format will be re-created by the CADO. For line art and charts that are not saved in either of the preferred formats, the CADO will ask authors to provide data points if they are not discernable from the submitted electronic documents. The time required for re-creating charts may affect when manuscripts are scheduled for publication.
  • Digital and scanned photographs—Photographs taken with digital cameras and scanned photographs should be saved at the highest resolution setting. The minimum resolution that the CADO can accept is 1024 × 768 pixels, and the minimum image resolution it can accept is 300 dpi (dots per inch). Authors should not enlarge photographs of lesser pixel sizes and dpi to meet these resolution requirements. The CADO prefers that images be saved in .jpeg format. However, high-resolution digital and scanned photographs in tagged image file format (.tif or .tiff) are acceptable, as long as they are compressed using a compression utility (eg, PKZIP, Aladdin StuffIt). OPSC's e-mail server, however, may not accept files larger than 10MB. Please contact OPSC at for alternative submission options. The CADO cannot accept photographs created for the World Wide Web (eg, photographs saved in graphics interchange format [.gif]). If the quality of scanned photographs is poor, authors will be asked to provide the CADO with the original film photographs.
  • Glossy print photographs—Print photographs should be of high contrast, and they should be on 5-inch × 7-inch color or black-and-white photographic paper. The placement of arrows, symbols, letters, numbers, and other markers should be indicated on photocopies, not the original photos. In addition, authors should not write on the back of original photographs. Authors should convert 35-mm slides to glossy prints and submit the prints along with the original 35-mm slides. The slides should be clearly labeled, with the top orientation marked on the front frames.
  • Radiographic images and photomicrographs—For radiographic images, authors should provide positive-reading glossy prints. For photomicrographs, authors should indicate the original magnification and the staining methods used in the images' captions.  


Authors are responsible for obtaining written permission from publishers and authors to adapt or reprint previously published tables, illustrations, and other graphic elements. Authors must specifically obtain permission to reprint or adapt graphic elements for both the CADO’s print and online versions.

Authors must also obtain written permission from patients to use their photographic images if those patients are identifiable in the images. If a patient is younger than 18 years, authors must obtain permission from one of the patient's parents or guardians.

Authors must submit signed permissions from publishers, authors, and patients once their manuscripts are accepted for publication in the CADO. Likewise, authors must submit signed permission from anyone explicitly named in their studies, including named sources for unpublished data and individuals listed in the acknowledgments.

Authors serving in the US military must obtain armed forces' approval for their manuscripts and provide military or institutional disclaimers when submitting manuscripts.

Failure to submit appropriate permission forms may delay publication.  


CADO requires references for all material derived from the work of others and to document statistical data. Cite all references in numerical order in the text, rather than alphabetizing bibliographic entries. In text, figure legends, and table footnotes, identify references with superscript Arabic numerals. If references are used as general source material from which no specific information is taken, list them in alphabetical order following the numbered references.

References are not generally published but are made available to any who request to see them.

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