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Author Instructions

Original An Original Article describes detailed 5000 Structured abstract 3-8 keywords The main content
Article results from novel research. All findings max including Aim, Methods, should include four
are extensively discussed. Results and Conclusion. sections: Introduction,
No more than 250 words. Methods, Results and
Discussion.
Review A review article should provide readers 7000 Unstructured abstract. 3-8 keywords The main text may
with an in-depth understanding of a field max No more than 250 words. consist of several
by summarizing existing literature, and sections with unfixed
highlight key gaps and challenges to section titles. We
address future research. suggest that the
author includes an
"Introduction" section
at the beginning,
several sections with
unfixed titles in the
middle part, and a
"Conclusion" section
in the end.
Meta- A Meta-Analysis is a statistical analysis 5000 Structured abstract 3-8 keywords The main content
Analysis combining the results of multiple scientific max including Aim, Methods, should include four
studies. It is often an overview of clinical Results and Conclusion. sections: Introduction,
trials. No more than 250 words. Methods, Results and
Discussion.
Systematic A Systematic Review collects and 3000 Structured abstract 3-8 keywords The main content
Review critically analyzes multiple research max including Aim, Methods, should include four
studies, using methods selected before one Results and Conclusion. sections: Introduction,
or more research questions are formulated, No more than 250 words. Methods, Results and
and then finding and analyzing related Discussion.
studies and answering those questions in a
structured methodology.
Technical A Technical Note is a short article 3500 Unstructured abstract. 3-8 keywords /
Note giving a brief description of a specific max No more than 250 words.
development, technique or procedure, or it
may describe a modification of an existing
technique, procedure or device applied in
research.
Commentary A Commentary is to provide comments on 2500 Unstructured abstract. 3-8 keywords /
a newly published article or an alternative max No more than 250 words.
viewpoint on a certain topic.
Editorial An Editorial is a short article describing 1000 None required. None required. /
news about the journal or opinions of max
senior Editors or the publisher.
Letter to A Letter to Editor is usually an open post- 1000 Unstructured abstract 3-8 keywords /
Editor publication review of a paper from its max (optional). No more than (optional)
readers, often critical of some aspect of 250 words.
a published paper. Controversial papers
often attract numerous Letters to Editor.
Opinion An Opinion usually presents personal 1200 Unstructured abstract 3-8 keywords /
thoughts, beliefs, or feelings on a topic. max (optional). No more than
250 words.
Perspective A Perspective provides personal points of 2000 Unstructured abstract. 3-8 keywords /
view on the state-of-the-art of a specific max No more than 150 words.
area of knowledge and its future prospects.
Links to areas of intense current research
focus can also be made. The emphasis
should be on a personal assessment rather
than a comprehensive, critical review.
However, comments should be put into the
context of existing literature. Perspectives
are usually invited by the Editors.

2.3 Manuscript Structure
2.3.1 Front Matter

VI Hepatoma Research