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Another study found that lower VD and smoking after clinical onset predicted worse long-term cognitive function and neuronal integrity in patients with multiple sclerosis (47)

In fact, e-cigarettes can mask the symptoms of gum disease, making it harder to detect the infection due to lack of blood flow and swelling to the site of infection, making you think that everythings ok when really gum disease is progressing

Bellinger et al., 2003

Journal of dental education 2020, 84(1):2733

Katz, M.D., and Katie W

But there is also another reason that underpins the IUOC concept, according to Guo
