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    Vladimir I. Ponomarenko and  Mikhail D. Prokhorov and  Anatoly S. Karavaev,  Interaction between Respiration and Low-Frequency Cardiovascular Rhythms.   journal   = {International Journal of Biomedical and Biological Engineering}, [online]. World Academy of Science, Engineering and Technology.
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    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/15684.