參攷文獻:Dodington, D. W., Fritz, P. C., Sullivan, P. J., & Ward, W. E. (2015). Higher Intakes of Fruits and Vegetables, β-Carotene, Vitamin C, α-Tocopherol, EPA, and DHA Are Positively Associated with Periodontal Healing after Nonsurgical Periodontal Therapy in Nonsmokers but Not in Smokers. The Journal of nutrition, jn211524.