PT - JOURNAL ARTICLE AU - Okumura, Hisatoshi AU - Kawashima, Atsushi TI - Black hairy tongue due to antibiotics AID - 10.1136/bcr-2023-255112 DP - 2023 Jul 01 TA - BMJ Case Reports PG - e255112 VI - 16 IP - 7 4099 - http://casereports.bmj.com/content/16/7/e255112.short 4100 - http://casereports.bmj.com/content/16/7/e255112.full SO - BMJ Case Reports2023 Jul 01; 16