UMLSAphthae, Aphthae, oral, Aphthae, stomatitis, Aphthae, ulcer, Aphthae, ulcer oral, Aphthae, ulcer recurrent, Aphthous Stomatitides, APHTHOUS STOMATITIS, APHTHOUS ULCER, Aphthous Ulcers, Aphthous, oral, Aphthous, stomatitis, Aphthous, ulcer, Aphthous, ulcer oral, Canker Sore, Canker Sores, CANKER SORES ORAL, Oral aphthae, Oral aphthae, NOS, Sore, Canker, Sore, mouth, canker, Sores, Canker, Stomatitides, Aphthous, STOMATITIS APHHNOUS, STOMATITIS APHTHOUS, Stomatitis, Aphthous, ULCER APHTHOUS ORAL, Ulcer, Aphthous, Ulcer, aphthous oral, Ulceration, aphthous, Ulceration, aphthous recurrent, ULCERS APHTHOUS ORAL, Ulcers, Aphthous |