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Kloter, Evelyne; Barrueto, Katja; Klein, Sabine D.; Scholkmann, Felix; Wolf, Ursula (2018). Heart Rate Variability as a Prognostic Factor for Cancer Survival – A Systematic Review. Frontiers in physiology, 9(623), p. 623. Frontiers Research Foundation 10.3389/fphys.2018.00623
