PT - JOURNAL ARTICLE AU - Charlotte Richards AU - Tom WM Walker AU - Sarah Girgis AU - Serryth Colbert TI - ‘Bubble sign’: gas-forming bacteria from an odontogenic infection AID - 10.1136/bcr-2019-233946 DP - 2020 Jun 01 TA - BMJ Case Reports PG - e233946 VI - 13 IP - 6 4099 - http://casereports.bmj.com/content/13/6/e233946.short 4100 - http://casereports.bmj.com/content/13/6/e233946.full SO - BMJ Case Reports2020 Jun 01; 13