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Chen, J., McCallum, R.W. & Richards, R. Frequency components of the electrogastrogram and their correlations with gastrointestinal contractions in humans. Med. Biol. Eng. Comput. 31, 60–67 (1993). https://doi.org/10.1007/BF02446895
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DOI: https://doi.org/10.1007/BF02446895