American Heart Journal Wiggers, H, Køber, L, Gislason, G, Schou, M, Poulsen, M K, Vraa, S, Nielsen, O W, Bruun, N E, Nørrelund, H, Hollingdal, M, Barasa, A, Bøttcher, M, Dodt, K, Hansen, V B, Nielsen, G, Knudsen, A S, Lomholdt, J, Mikkelsen, K V, Jonczy, B, Brønnum-Schou, J, Poenaru, M P, Abdulla, J, Raymond, I, Mahboubi, K, Sillesen, K, Serup-Hansen, K, Madsen, J S, Kristensen, S L, Larsen, A H, Bøtker, H E, Torp-Petersen, C, Eiskjær, H, Møller, J, Hassager, C, Steffensen, F H, Bibby, B M, Refsgaard, J, Høfsten, D E, Mellemkjær, S & Gustafsson, F 2021, ' The DANish randomized, double-blind, placebo controlled trial in patients with chronic HEART failure (DANHEART) : A 2 × 2 factorial trial of hydralazine-isosorbide dinitrate in patients with chronic heart failure (H-HeFT) and metformin in patients with chronic heart failure and diabetes or prediabetes (Met-HeFT) ', American Heart Journal, vol. 231, pp. 137-146 . https://doi.org/10.1016/j.ahj.2020.09.020 Wiggers, H, Køber, L, Gislason, G, Schou, M, Poulsen, M K, Vraa, S, Nielsen, O W, Bruun, N E, Nørrelund, H, Hollingdal, M, Barasa, A, Bøttcher, M, Dodt, K, Hansen, V B, Nielsen, G, Knudsen, A S, Lomholdt, J, Mikkelsen, K V, Jonczy, B, Brønnum-Schou, J, Poenaru, M P, Abdulla, J, Raymond, I, Mahboubi, K, Sillesen, K, Serup-Hansen, K, Madsen, J S, Kristensen, S L, Larsen, A H, Bøtker, H E, Torp-Petersen, C, Eiskjær, H, Møller, J, Hassager, C, Steffensen, F H, Bibby, B M, Refsgaard, J, Høfsten, D E, Mellemkjær, S & Gustafsson, F 2021, ' The DANish randomized, double-blind, placebo controlled trial in patients with chronic HEART failure (DANHEART) : A 2 × 2 factorial trial of hydralazine-isosorbide dinitrate in patients with chronic heart failure (H-HeFT) and metformin in patients with chronic heart failure and diabetes or prediabetes (Met-HeFT) ', American Heart Journal, vol. 231, pp. 137-146 . https://doi.org/10.1016/j.ahj.2020.09.020, https://doi.org/10.1016/j.ahj.2020.09.020