[1] Chungbuk Natl Univ Hosp, Dept Internal Med, Div Hematol Oncol, Cheongju, South Korea
[2] Chungbuk Natl Univ, Coll Med, Dept Internal Med, Cheongju, South Korea
[3] Chungbuk Natl Univ Hosp, Dept Publ Hlth & Prevent Med, Cheongju, South Korea
[4] Chungbuk Natl Univ, Grad Sch Hlth Sci Business Convergence, Coll Med, Cheongju 361763, South Korea
[5] Harvard Univ, TH Chan Sch Publ Hlth, Boston, MA 02115 USA
[6] Sungkyunkwan Univ, Samsung Med Ctr, Support Care Ctr, Dept Family Med,Sch Med, Seoul, South Korea
[7] Sungkyunkwan Univ, Dept Digital Hlth, SAIHST, Seoul, South Korea
[8] Natl Hlth Insurance Serv, Big Data Steering Dept, Wonju, South Korea