title: Message from the editor-in-chief.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Shimokawa
mesh_terms: D015706:Bibliometrics; D035843:Biomedical Research / Q000706:statistics & numerical data*; D002309:Cardiology / Q000706:statistics & numerical data*; D006801:Humans; D010506:Periodicals as Topic / Q000706:statistics & numerical data*