[1] Johns Hopkins Univ, Krieger Sch Arts & Sci, Baltimore, MD USA
[2] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Hlth Behav & Soc, Baltimore, MD USA
[3] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
[4] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Canc Educ Ctr, Seoul, South Korea
[5] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul, South Korea
[6] Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Hematol & Oncol, Seoul, South Korea
[7] Sungkyunkwan Univ, SAHIST, Dept Hlth Sci & Technol, Seoul, South Korea