Plasma Cotinine Is Positively Associated with Homocysteine in Smokers but Not in Users of Smokeless Tobacco

by Elisabet Söderström, Torbjörn K. Nilsson, Jörn Schneede, Per-Magne Ueland, Øivind Midttun, Björn Gylling, Ingegerd Johansson, Johan Hultdin
Published 2021