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Wallert J, Held C, Madison G, Olsson EM.Wallert J, et al.Am Heart J. 2017 Sep;191:12-20. doi: 10.1016/j.ahj.2017.05.015. Epub 2017 Jun 3.Am Heart J. 2017.PMID: 28888265Free article.
Wallert J, Mitchell A, Held C, Hagström E, Leosdottir M, Olsson EMG.Wallert J, et al. Among authors: olsson emg.Int J Cardiol. 2019 Oct 1;292:19-24. doi: 10.1016/j.ijcard.2019.04.049. Epub 2019 Apr 18.Int J Cardiol. 2019.PMID: 31031079Free article.
Humphries SM, Rondung E, Norlund F, Sundin Ö, Tornvall P, Held C, Spaak J, Lyngå P, Olsson EMG.Humphries SM, et al. Among authors: olsson emg.J Med Internet Res. 2020 Sep 17;22(9):e19066. doi: 10.2196/19066.J Med Internet Res. 2020.PMID: 32940615Free PMC article.