20240123210940.599866 http://journal.sleepnet.or.kr Journal of sleep medicine (Online) Journal of sleep medicine Korea (South) Journal of sleep medicine (Online) 2384-2423 internetarchive Internet Archive https://fatcat.wiki/container/sq7r5wkp5zfpfcthuy7w4nkige 2015/2022 2023-09-15 2015-2022 12 to 19 Preserved Korean Sleep Society Journal of Sleep Medicine 2384-2431 2384-2423 Journal of sleep medicine