PT - JOURNAL ARTICLE AU - Takashi Watari AU - Yasuharu Tokuda TI - Double tongue signs in a case of submandibular space infection AID - 10.1136/bcr-2018-225559 DP - 2018 Jun 30 TA - BMJ Case Reports PG - bcr-2018-225559 VI - 2018 4099 - http://casereports.bmj.com/content/2018/bcr-2018-225559.short 4100 - http://casereports.bmj.com/content/2018/bcr-2018-225559.full