https://www.frontiersin.org/articles/10.3389/fnins.2020.00740/full https://www.ncbi.nlm.nih.gov/pubmed/32760247?dopt=Abstract Vitamin B12 Supplementation and NT-proBNP Levels in COPD Patients: A Secondary Analysis of a Randomized and Controlled Study in Rehabilitation. Related Articles Vitamin B12 Supplementation and NT-proBNP Levels in COPD Patients: A Secondary Analysis of a Randomized and Controlled Study in Rehabilitation. Front Neurosci. 2020;14:740 Authors: Paulin FV, Goelzer LS, Müller PT Abstract […]