major Aphthous ulcer

...溃疡(minor aphthous ulcer)、重型阿弗他溃疡(major aphthous ulcer)、疱疹样阿弗他溃疡(her petiform ulcer).

...疡(minor aphthous ulcer) 3复发性坏死性黏膜腺周炎(major aphthous ulcer)