Word processors and format of manuscript:
All materials must be written in clear, appropriate English. The manuscript must be written in 12-
point font with double-line spacing and at least 3-cm margins on A4 or letter-size paper using
Microsoft Word or other major word processing programs. All pages should be numbered
consecutively starting with the title page. All measurements should be in metric units.
Reporting guidelines for specific study designs:
For the specific study design, such as randomized control studies, studies of diagnostic accuracy,
meta-analyses, observational studies and non-randomized studies, it is recommended that the
authors follow the reporting guidelines listed in the following table [1].
ORIGINAL ARTICLES
Original articles are reports of basic or clinical investigations. Although there is no limitation on
the length of these manuscripts, the Editorial Board may abridge excessive illustrations and large
tables. The manuscript for an original article should be organized in the following sequence: title
page, abstract and keywords, introduction, methods, results, discussion, acknowledgments,
references, tables, and figure legends.
The cover letter should inform the editor that neither the submitted material nor portions thereof
have been published previously or are under consideration for publication elsewhere. It should
state any potential conflict of interest that could influence the authors¡¯ interpretation of the data,
such as financial support from or connections to pharmaceutical companies, political pressure from
interest groups, or academically related issues.
Title page:
The title page should list the title of the article and the full names and institutional affiliations of all
authors. The title should be short, informative, and contain the major key words (no more than
120 characters, not including spaces between words). The use of acronyms and abbreviations
should be avoided, and the species of any experimental animal must be indicated in the title. A
short running title must also be provided, consisting of fewer than 40 characters including spaces.
For a multicenter study, indicate each individual¡¯s affiliation using a superscript Arabic number.
Contact information for correspondence must be provided, consisting of the name, academic
degree(s), address (institutional affiliation, city, zip code, and country), telephone and fax numbers,
and e-mail address.
Abstract and Keywords:
The abstract of the original article should be no more than 250 words and be divided into four
subsections: Background/Aims, Methods, Results, and Conclusions. Abbreviations, if needed, should
be kept to an absolute minimum and identified clearly. Up to five keywords should be listed below the
abstract. For selecting keywords, refer to the Index Medicus Medical Subject Headings [7].
Introduction:
The introduction should include a brief background of the topic for general readers and should
refer to the most pertinent papers and relevant findings of others in the field. The specific
questions to be addressed by the study should also be described.
Methods:
Methods should be described concisely, but in sufficient detail to allow other qualified
investigators to repeat the experiments. The sources of special chemicals or reagents should be
given along with the source location (name of company, city, state/province, and country). If
needed, include information on the institutional review board/ethics committee approval or waiver
and informed consent. Methods of statistical analysis and criteria for statistical significance should
be described.
Results:
The results should be presented in logical order using text, tables, and illustrations. Duplication of
table or figure content should be avoided.
Discussion:
The discussion section is a concise interpretation and discussion of the data and results. Speculation
is permitted, but it must be supported by the presented data. Content already presented in the
results should not be repeated in the discussion.
Acknowledgments:
All persons who have made substantial contributions, but who have not met the criteria for
authorship, are acknowledged here. All sources of funding applicable to the study should be stated
here explicitly.
References:
In the text, references should be cited with Arabic numerals in brackets, numbered in the order
cited. In the references section, the references should be numbered and listed in order of
appearance in the text. List all authors if there are less than or equal to six authors. List the first
three authors followed by ¡°et al.¡± if there are more than six authors. If an article has been
published online, but has not yet been given an issue or pages, the digital object identifier (DOI)
should be supplied. Journal titles should be abbreviated in the style used in Index Medicus. Other
types of references not described below should follow The NLM Style Guide for Authors, Editors,
and Publishers[8].
Journal articles:
1. Yoo BM, Lehman GA. Update on endoscopic treatment of chronic pancreatitis.
Korean J Intern Med 2009;24:169-179.
2. Caselli RJ, Dueck AC, Osborne D, et al. Longitudinal modeling of age-related memory
decline and the APOE epsilon4 effect. N Engl J Med 2009;361:255-263.
Entire book:
3. Gilman AG, Rall TW, Nies AS, Taylor P. Goodman and Gilman¡¯s the Pharmacological
Basis of Therapeutics. 9th ed. New York: Pergamon Press, 1996.
Part of a book:
4. Costa M, Furness JB, Llewellyn-Smith IF. Histochemistry of the enteric nervous system.
In: Johnson LR, ed. Physiology of the Gastrointestinal Tract. 2nd ed. Vol. 1. New York:
Raven, 1987:1-40.
Dissertation:
5. Hong GD. The relationship between low serum cholesterol level and cancer mortality
[dissertation]. Seoul (KR): Seoul National University; 2009.
Conference paper:
6. Rice AS, Brooks JW. Canabinoids and pain. In: Dostorovsky JO, Carr DB, eds.
Proceedings of the 10th World Congress on Pain; 2002 Aug 17-22; San Diego, CA.
Seattle (WA): IASP Press, 2003: 437-468.
Online publication:
7. Suzuki S, Kajiyama K, Shibata K, et al. Is there any association between retroperitoneal
lymphadenectomy and survival benefit in ovarian clear cell carcinoma patients?
Ann Oncol 2008 Mar 19 [Epub]. DOI:10.1093/annonc/mdn059.
Online sources:
8. American Cancer Society. Cancer reference information [Internet]. Atlanta (GA): American
Cancer Society, c2009 [Cited 2009 Nov 20].
Available from: http://www.cancer.org/docroot/CRI/CRI_0.asp.
9. National Cancer Information Center. Cancer incidence [Internet]. Goyang (KR): National
Cancer Information Center, c2009 [Cited 2009 Oct 20].
Available from: http://www.cancer.go.kr/cms/statics.
Tables Tables should be constructed simply and should not duplicate information found in the figures. Each table should have a title, begin on a new page, and be numbered with an Arabic numeral in the order of its citation in the text. If numerical measurements are given, the unit of measurement should be included in the column heading. The statistical significance of observed differences in the data should be indicated by the appropriate statistical analysis. All nonstandard abbreviations should be defined in footnotes. Lower case letters in superscripts a), b), c) ... should be used for special remarks.
Figures Only high-resolution figure files (preferably 600 dpi for color figures and 1200 dpi for line art and graphs) should be submitted. Figure images should be provided in EPS or TIF format, although the JPEG format is allowed for color figures. The smallest parts of a figure should be legible when they are reduced to the final print size. Each figure should be saved as a separate electronic file. Symbols, arrows, or letters used in photographs should contrast from the background visually. The legend for each light microscopic image should indicate the stain used and the level of magnification. Electron micrographs should have an internal magnification scale marker. All types of figures may be reduced, enlarged, or trimmed for publication by the editor.
CASE REPORTS
Case reports will be published only in exceptional circumstances, when they illustrate a rare
occurrence of clinical importance. Case reports should address issues of importance to medical
researchers and preferably should have helpful illustrations.
The manuscript for a case report should be organized in the following sequence: title page, abstract
and keywords, introduction, case report, discussion, acknowledgments, references, tables, and figure
legends. The abstract should be unstructured and its length should not exceed 150 words. There
should be no more than five figures, including tables, and no more than 10 references.
REVIEWS
Reviews are invited by the editor and should be comprehensive analyses of specific topics. They are
organized as follows: title page, abstract and keywords, introduction, body text, conclusion,
acknowledgments, references, tables, and figure legends. There should be an unstructured abstract
The Korean Journal of Internal Medicine
equal to or less than 200 words. The length of the text excluding references, tables, and figures
should not exceed 7,500 words.
EDITORIALS
Editorials are invited by the editor and should be commentaries on articles published recently in the
Journal. Editorial topics could include active areas of research, fresh insights, and debates in all fields of
internal medicine. Editorials should not exceed 2,000 words, excluding references, tables, and figures.
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