{"id":6402,"date":"2019-11-18T04:18:47","date_gmt":"2019-11-18T04:18:47","guid":{"rendered":"https:\/\/www.niph.go.jp\/?page_id=6402"},"modified":"2019-11-19T02:05:13","modified_gmt":"2019-11-19T02:05:13","slug":"data-68-4-e68-4-en","status":"publish","type":"page","link":"https:\/\/www.niph.go.jp\/en\/journal-en\/data-68-4-e68-4-en\/","title":{"rendered":"Journal of the National Institute of Public Health Vol.68 No.4"},"content":{"rendered":"