WORLD JOURNAL OF gASTROENTEROLOGY (WJG, originally known

as the China National Journal of Gastroenterology, ISSN 1007-9327, CN14-

1219/R) publishes mainly original research, brief reports editorials, and reviews

of experimental and clinical studies in gastroenterology. Articles from all parts of

the world are welcome and peer reviewed for publication on condition that they

have not been published elsewhere. An original and one copy (two complete sets

including original illustrations) of all manuscripts should be mailed to one of the

chief editors at the following addresses:

Dr MA lian-Sheng, Chief Editor & President

P.O.Box2345, Beijing 100023, China

Tel/Fax.+86·10·65891893

prof PAN Bo-Rong, Editor-in-Chief, M.D, World Journal of Gastroenterology,

Room 12, building 621, Fourth Military Medical University,

17 Chang lexilu, Xi′an710033, Shaanxi Province, China

Tel/Fax.+86·29·3224890

LETTER OF TRANSMITTAL

a COPYRIGHT ASSIGNMENT FORM must be signed by all authors as shown below.

GENERAL INFORMATION

manuscripts should be typewritten on A4(30cm×21cm) white paper, double-spaced,

including references, footnotes, tables, and legends. Sufficient (2.5cm) margins should

be left at the top, bottom, and two sides of each page. All pages should be numbered

consecutively beginning with a separate title page with the authors' names and affiliations.

the manuscript should be arranged as title page, subject headings, abstract, introduction,

materials and methods, results, discussion, references, tables, figures and figure legends.

the editors and publishers are not responsible for the opinions expressed by contributors.

accepted manusripts become the permanent property of WORLD JOURNAL OF

gASTROENTEROLOGY and may not be reproduced by any means, in whole or in

part whithout the written permission of both the authors and the publisher. We reserve

the right to copy edit accepted manuscripts. Investigations in human subjects must

conform to accepted ethical standards, provided by the responsible committee of

the institution or to the Helsinki declaration of 1975, as revised in 1983. animal

experiments should follow the instructions for the care and use provided by the institution.

authors should retain one copy of text, tables and illustrations, as the editors will not

hold any responsibilities for loss or damage to typescripts, and will not return the

manuscripts to the author(s), if not accepted.

MANUSCRIPT PREPARATION

all contributions should be written in English (with extra one copy in Chinese only for

authors from China). Style should conform to the Uniform requirements for manuscripts

submitted to biomedical journals, as presented in Ann Intern Med,1997;126(1):36-47(Fifth Edition).

Title page Should be a separate page and include the manuscript title, author(s),

affiliations of each author, the institution and department where the work was

accomplished, first author's brief introduction, and acknowledgment of any financial

support for the research. The name, full address, and telephone number of the

corresponding author should be typed in the lower left corner of the title page.

titles should be concise and informative. A short running title (less than 40 letters)

should be provided. The authors′ names are listed as follows; initials and/or

first name, middle initial(s) and family name for the West, put family name first,

such as PAN Bo-Rong (use Pan BR in contents page) for Chinese.

Subject Headings(3-8) should be provided above the abstract to assist indexers

in cross-indexing the article. Use the latest issue of the Medical Subject headings (MeSH).

Abstract An informative and structured abstract of not more than 250 words should

accompany each manuscript. Abstracts for original contributions should be divided by

individual headings into paragraphs entitled: AIM, METHODS, RESULTS, and

cONCLUSION. Text should be written mainly in four paragraphs, entitled iNTRODUCTION,

mATERIALS AND METHODS, RESULTS, and DISCUSSION (IMRAD style),

including necessary figures and/or tables.

Acknowledgments Brief acknowledgments of persons who have made genuine

contributions and who endorse the data and conclusions are included. Authors are

responsible for obtaining written permission to use any copyrighted text and/or illustration.

References References cited in the text, tables and legends are put by Arabic

numerals in superscript in the order in which they first appear in the text. references

are typed double-spaced on sheets separate from the text and numbered consecutively

in the order in which they appear in the text. Titles of journals are abbreviated in the

reference list according to the style used in Index Medicus. Unpublished observations

and personal communications are not listed as references. The style and punctuation

of the references conform to the Vancouver style (fifth edition).

Examples

Standard journal article (list all authors when six or less; when seven or more list only

the first six and add et al).

1 Pan BR, Hodgson HJF, Kalsj J. Hyperglobulinemia in chronic liver disease:

relationships between in vitro immunoglobulin synthesis, short lived suppressor

cell activity and serum immunoglobulin levels. Clin Exp Immunol,1984;55(3):546-551

2 Kimura K, Ido K, Saifuku K, Taniguchi M, Kihira K, Satoh K et al. a one-hour

topical therapy for the treatment of Helicobacter pylori infection. Am J gastroenterol,

1985;90(1):60-65

books and other monographs

3 Sherlock S, Dooley J. Diseases of the liver and biliary system. 9th ed. oxford:

blackwell Sci Pub, 1993:258-296

chapter in a book