Text and Data Mining valid from 2019-03-04
Received: 19 September 2018
Accepted: 24 February 2019
First Online: 4 March 2019
Change Date: 29 March 2019
Change Type: Correction
Change Details: The correct name of the corresponding author should be ‘‘Takahiro Mimae’’, and not ‘‘Emiko Hiraoka’’ as given in the original publication of the article.
Compliance with ethical standards
: The authors have no conflicts of interest to declare.
: The Institutional Review Board, Ethics Committee for Epidemiology at Hiroshima University approved this study.