Any research that deals with clinical trial should be registered to the primary national clinical trial registration site such as
http://cris.nih.go.kr/cris/index.jsp, or other sites accredited by World Health Organization or ICMJE. This journal follows the data sharing policy described in “Data Sharing Statements for Clinical Trials: A Requirement of the International Committee of Medical Journal Editors”. The ICMJE's policy regarding trial registration is explained at
http://www.icmje.org/recommendations/browse/publishing-and-editorial-issues/clinical-trial-registration.html. If the data sharing plan changes after registration this should be reflected in the statement submitted and published with the manuscript, and updated in the registry record.