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Author Instructions

2.3.3.9 References
Preferably original research articles that directly support the statements should be cited. Review articles could be cited
when they specifically address the statement made in the manuscript. An abstract should not be used as a reference. Non-
specific citations should be avoided.
References should be numbered in order of appearance at the end of manuscripts. In the text, reference numbers should be
placed in square brackets and the corresponding references are cited thereafter. If the number of authors less than or equal
to six, we require to list all authors’ names. If the number of authors is more than six, only the first three authors’ names are
required to be listed in the references, other authors’ names should be omitted and replaced with “et al.”. Abbreviations of
the journals should be provided on the basis of Index Medicus. Information from manuscripts accepted but not published
should be cited in the text as “Unpublished material” with written permission from the source.

Types Examples
Journal articles by Weaver DL, Ashikaga T, Krag DN, et al. Effect of occult metastases on survival in node-negative
individual authors breast cancer. N Engl J Med 2011;364:412-21. [PMID: 21247310 DOI: 10.1056/NEJMoa1008108]
Organization as author Diabetes Prevention Program Research Group. Hypertension, insulin, and proinsulin in participants
with impaired glucose tolerance. Hypertension 2002;40:679-86. [PMID: 12411462]
Both personal authors and Vallancien G, Emberton M, Harving N, van Moorselaar RJ; Alf-One Study Group. Sexual dysfunction
organization as author in 1,274 European men suffering from lower urinary tract symptoms. J Urol 2003;169:2257-61. [PMID:
12771764 DOI: 10.1097/01.ju.0000067940.76090.73]
Journal articles not in Zhang X, Xiong H, Ji TY, Zhang YH, Wang Y. Case report of anti-N-methyl-D-aspartate receptor
English encephalitis in child. J Appl Clin Pediatr 2012;27:1903-7. (in Chinese)
Journal articles ahead of Odibo AO. Falling stillbirth and neonatal mortality rates in twin gestation: not a reason for
print complacency. BJOG 2018; Epub ahead of print [PMID: 30461178 DOI: 10.1111/1471-0528.15541]
Books Sherlock S, Dooley J. Diseases of the liver and billiary system. 9th ed. Oxford: Blackwell Sci Pub;
1993. pp. 258-96.
Book chapters Meltzer PS, Kallioniemi A, Trent JM. Chromosome alterations in human solid tumors. In: Vogelstein
B, Kinzler KW, editors. The genetic basis of human cancer. New York: McGraw-Hill; 2002. pp. 93-
113.
Online resource FDA News Release. FDA approval brings first gene therapy to the United States. Available from:
https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm574058.htm. [Last accessed
on 30 Oct 2017]
Conference proceedings Harnden P, Joffe JK, Jones WG, editors. Germ cell tumours V. Proceedings of the 5th Germ Cell
Tumour Conference; 2001 Sep 13-15; Leeds, UK. New York: Springer; 2002.
Conference paper Christensen S, Oppacher F. An analysis of Koza's computational effort statistic for genetic
programming. In: Foster JA, Lutton E, Miller J, Ryan C, Tettamanzi AG, editors. Genetic
programming. EuroGP 2002: Proceedings of the 5th European Conference on Genetic Programming;
2002 Apr 3-5; Kinsdale, Ireland. Berlin: Springer; 2002. pp. 182-91.
Unpublished material Tian D, Araki H, Stahl E, Bergelson J, Kreitman M. Signature of balancing selection in Arabidopsis.
Proc Natl Acad Sci U S A. Forthcoming 2002.
For other types of references, please refer to U.S. National Library of Medicine.
The journal also recommends that authors prepare references with a bibliography software package, such as EndNote to
avoid typing mistakes and duplicated references.
2.3.3.10 Supplementary Materials
Additional data and information can be uploaded as Supplementary Material to accompany the manuscripts. The Additional
data and information can be uploaded as Supplementary Materials to accompany the manuscripts. The supplementary
materials will also be available to the referees as part of the peer-review process. Any file format is acceptable, such as data
sheet (word, excel, csv, cdx, fasta, pdf or zip files), presentation (powerpoint, pdf or zip files), image (cdx, eps, jpeg, pdf,
png or tiff), table (word, excel, csv or pdf), audio (mp3, wav or wma) or video (avi, divx, flv, mov, mp4, mpeg, mpg or wmv).
All information should be clearly presented. Supplementary materials should be cited in the main text in numeric order
(e.g., Supplementary Figure 1, Supplementary Figure 2, Supplementary Table 1, Supplementary Table 2, etc.). The style of
supplementary figures or tables complies with the same requirements on figures or tables in main text. Videos and audios
should be prepared in English, and limited to a size of 500 MB.

2.4 Manuscript Format
2.4.1 File Format
Manuscript files can be in DOC and DOCX formats and should not be locked or protected.
2.4.2 Length
There are no restrictions on paper length, number of figures, or amount of supporting documents. Authors are encouraged