Electronic Submission of Manuscripts A file of manuscript in any reviewing steps should be submitted via online submission menu at http: //www. ksdf.or.kr. Unless prepared properly according to the guidelines, all manuscripts may have to be rejected solely because they require excessive editing. Instructions to authors should strictly be followed before submission of any manuscript to the journal. In case typed manuscript has to be submitted, consult with the publication coordinator of the society. Contact information for the corresponding author, including an E-mail address, fax number, and telephone number, must be provided with all submissions. Authors are asked to sign a copyright transfer form. Questions should be sent by email to ksdf@ksdf.or.kr. Peer Review Process All manuscripts are subject to experts peer review process. Reviewers are consist of three. The reviewers make effort to ensure that manuscripts are fairly and independently reviewed(http://www.ksdf.or.kr/screen). Crossref similarity check powered by iThenticate(http://www.ithenticate.com). Preparation of Manuscript Manuscripts must be typed in clear and concise English or Korean typed in Word, hwp on one side of A4 paper with adequate margin, including the reference section. All pages less than 20 pages in length including tables and figures should be numbered consecutively. Received date and revised date will be assigned after the manuscript or revised manuscript are arrived to the office. Accepted date will be assigned after the final decision is made.