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[117] found that FMD was impaired in a group of former smokers with COPD, especially in those with low FEV 1 and advanced emphysema

B12 injections are a highly efficient method of supplementation, bypassing the digestive system and ensuring maximum absorption

Int J Chem Stud 7:12191226 She A, Li Y, Jiang L (2025) Study on the anti-free radical, antibacterial, and whitening effects of sea buckthorn extract and its product development

Metab Brain Dis 32:321329

In other words, the destabilization of Cu(II) allows redox cycling to occur more easily (this is also related to Marcus theory, and this article should be elaborated to describe application of Marcus Theory)