Editorial Policy

ARTICLE TYPES
Original articles are original empirical articles that include reports of epidemiological researches, clinical trials, observational studies, and other basic molecular, immunological, clinical and public health investigations. The research articles are limited to 3.500 words of text, with up to 5 figures or tables.
Review articles include literature and data source reviews and meta-analyses in the topics of preventive medicine. The review articles are limited to 4.500 words of text, with up to 8 figures or tables.
Short communications include complete description of preliminary observations, technique modifications or data that simply do not warrant publication as a full paper. The short communications comprise approximately 2.500 words of text, with up to 3 figures and/or tables.
Letters to the Editor provide a short and timely report of novel findings. The text is limited to 700 words, it may include one table or figure, and the reference limit is 8.

EDITORIAL POLICY
Conditions of Submission: Manuscripts have not been previously published, either in whole or in part, or under consideration for publication elsewhere.  
Ethical approval: Studies involving human subjects must provide a description of ethical approval by appropriate institutions where the studies are conducted.
Conflict of interest: All authors are expected to disclose any actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations.
The corresponding author needs to have the authority to act on the behalf of all the authors in all matters pertaining to publication of the manuscript.
Authors may provide editors with the names of persons they feel should not review their manuscript because of a potential conflict.
Copyright: The corresponding author has to sign a copyright transfer agreement on behalf of all authors.

MANUSCRIPT PREPARATION
Manuscript text must be prepared and submitted in Microsoft Word (*.doc or *.docx). Tables (in doc and docx format) and figures (ppt, pptx or tif format) must be sent as separate files, also embedded in manuscript text. VJPM encourages authors whose first language is not English to seek assistance in manuscript preparation, including writing and editing, prior to the initial submission.

Formatting requirements
Type every portion of the manuscript by one and half spaced, including figure legends, table footnotes, and references. The font size should be 12 points (Times New Roman).
Manuscripts must contain the essential elements needed to convey your manuscript including Title, Author names and affiliations, Abstract, Keywords, corresponding author information, Introduction, Materials and Methods, Results, Discussion, Conclusions, References.

Article structure
Title should be concise but informative.
Author names and affiliations include the full name (first, middle and last names, in this order, but not academic degree of author), the name and address of the authors’ institutions. The use of Vietnamese names as last or first name will be decided by the authors. This option should then be used consistently between publications from the same authors. The authors' affiliation addresses are presented below the names.
Abstract should not exceed 250 words and concisely summarize the basic content of the paper without presenting experimentals or results in extensive details.
Keywords should follow immediately after the abstract. A maximum of 5 keywords should be provided, avoiding general and plural terms and multiple concepts.
Corresponding author information should clearly indicate who would handle correspondence at all stages of reviewing and publication. Provide the full postal address, including the phone number and the e-mail address.
Introductions should present an adequate background and overview of the topic as well as and objectives of the work. Avoid a detailed literature review or a summary of the results.
Materials and Methods include sufficient technical information to allow the experiments to be repeated. Describe new methods in complete details including the sources of unusual chemicals, reagents, equipments, or microbial strains. The statistical methods used for data analyses should be stated clearly
Results should be clear and concise in the forms of text and/or table(s) and/or figure(s). Number figures and tables in the order in which they are cited in the text.
Discussions should provide an interpretation of the results in relation to previously published works and to the experimental system at hand. Explore the significance of the results as well as limitations of the work. In short communications, the Results and Discussion sections may be combined.
Conclusions should be kept in short (1-2 sentences) and must be the major conclusions, which are fully supported by the reported results.
Acknowledgments list individuals who provided help during the research. Acknowledge only people who have made substantive contributions to the study.
References
References are to follow the Vancouver Style and should be identified by number in the order in which they are mentioned in the text. This Style can be found in any reference manager software (Endnotes, Reference Managers etc.).
Example references
Reference to a journal publication:
Pham TH, Tran HN, Honiby PA et al. Risk factors for human infection with avian influenza A H5N1, Vietnam, 2005. Emerg Infect Dis 2006; 11 (9): 1882-1887.
Reference to a book:
Martens H and Naes T. Multivariate Calibration. 1991. Chichester, UK: J. Wiley and Sons.
Reference to a chapter in an edited book:
Chianelli RR, Daage M, Ledoux MJ. Fundamental studies of transition-metal sulfide catalytic materials. In Advances in Catalysis, Vol. 40, edited by Eley DD, Pines H, and Haag WO. 1994. Burlington, Mass.: Academic Press.
Reference to a website:
WHO, http://www.who.int/immunization_monitoring/Manual_lab_diagnosis_JE.pdf, received on 1 August 2013