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. 2023 Apr 27:381:e071838.
doi: 10.1136/bmj-2022-071838.

An ulcerative lip lesion

Hao Guo  1   2 , Xing-Hua Gao  1   2 , Hong-Duo Chen  1   2 , Jiu-Hong Li  3   2
Affiliations

An ulcerative lip lesion

Hao Guo et al. BMJ. .
No abstract available

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Conflict of interest statement

Competing interests: The BMJ has judged that there are no disqualifying financial ties to commercial companies. The authors declare the following other interests: none. Further details of The BMJ policy on financial interests is here: https://www.bmj.com/sites/default/files/attachments/resources/2016/03/16-current-bmj-education-coi-form.pdf.

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