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Note:
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Do not use the respective class options with \SpecialChar LyX
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 Also select Numeric or Author-Year with Natbib in 
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 For submission of the \SpecialChar LaTeX
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Also,
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The abstract serves both as a general introduction to the topic and as a brief,
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 citations,
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Purpose:

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 The abstract serves both as a general introduction to the topic and as a brief,
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Methods:

\series default
 The abstract serves both as a general introduction to the topic and as a brief,
 non-technical summary of the main results and their implications.
 The abstract must not include subheadings (unless expressly permitted in the journal's Instructions to Authors),
 equations or citations.
 As a guide the abstract should not exceed 200 words.
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Results:

\series default
 The abstract serves both as a general introduction to the topic and as a brief,
 non-technical summary of the main results and their implications.
 The abstract must not include subheadings (unless expressly permitted in the journal's Instructions to Authors),
 equations or citations.
 As a guide the abstract should not exceed 200 words.
 Most journals do not set a hard limit however authors are advised to check the author instructions for the journal they are submitting to.
 
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\series bold
Conclusion:

\series default
 The abstract serves both as a general introduction to the topic and as a brief,
 non-technical summary of the main results and their implications.
 The abstract must not include subheadings (unless expressly permitted in the journal's Instructions to Authors),
 equations or citations.
 As a guide the abstract should not exceed 200 words.
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Keyword1,
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 Keyword4
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Introduction
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Results
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Supplementary Information
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Acknowledgments are not compulsory.
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Some journals require declarations to be submitted in a standardized format.
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Declarations
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Code availability
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Authors' contributions
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Editorial Policies for:
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Springer journals and proceedings:
 
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https://www.springer.com/gp/editorial-policies
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Nature Portfolio journals:
 
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https://www.nature.com/nature-research/editorial-policies
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\emph on
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For submissions to Nature Portfolio Journals please use the heading 
\begin_inset Quotes eld
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Extended Data
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An appendix contains supplementary information that is not an essential part of the text itself but which may be helpful in providing a more comprehensive understanding of the research problem or it is information that is too cumbersome to be included in the body of the paper.
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Example of another appendix section
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