PT - JOURNAL ARTICLE AU - Takeshi Onda AU - Kamichika Hayashi AU - Akira Katakura AU - Masayuki Takano TI - Spontaneous oral hematoma diagnosed as angina bullosa hemorrhagica AID - 10.3949/ccjm.89a.22040 DP - 2022 Nov 01 TA - Cleveland Clinic Journal of Medicine PG - 615--616 VI - 89 IP - 11 4099 - http://www.ccjm.org/content/89/11/615.short 4100 - http://www.ccjm.org/content/89/11/615.full SO - Cleve Clin J Med2022 Nov 01; 89