In Memoriam Arne Holmgren (1940–2020)Arnér, Elias S.J.Author informationDivision of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77, Stockholm, SwedenE-mail: [email protected]Free Radical Biology and Medicine 167:p iii-iv, May 2021. | DOI: 10.1016/S0891-5849(21)00273-2Copyright © 2021Elsevier, Inc.