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INTERMEDIATE LEVEL


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WN: 14211985-n 口内炎
WN: 14211985-n 口疮
WN: 14211985-n 口疮性溃疡
WN: 14211985-n 口腔溃疡
WN: 14211985-n úlcera aftosa
WN: 14211985-n aphte
WN: 14211985-n Aphthe













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