Text and Data Mining valid from 2018-03-20
Received: 13 September 2017
Accepted: 12 March 2018
First Online: 20 March 2018
: DM, Doctoral student, College of Nursing, Yonsei University, Seoul, Republic of Korea.EC, Professor, College of Nursing & Mo-Im Kim Nursing Research Institute, Yonsei University, Seoul, Republic of Korea.
: The KLoSA study was approved by the National Statistical Office (Approval number: 33602) and was conducted after acquiring verbal consent of participants in the study. This study was conducted with the approval of the Yonsei University Health System Research Ethics Committee (Y-2017-0007).
: There are no details of individual participants in the manuscript.
: The authors declare that they have no competing interests.
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