Efficacy of low-level laser therapy in treatment of recurrent aphthous ulcers – a sham controlled, split mouth follow up study.
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Aggarwal H, Singh MP, Nahar P, Mathur H, Gv S.
J Clin Diagn Res. 2014 Feb;8(2):218-21. doi: 10.7860/JCDR/2014/7639.4064. Epub 2014 Feb 3.