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by Oderda, G., Vaira, D.
Published in Acta Endoscopica (1991)
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Published in Acta Endoscopica (1991)
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by Barostat, Le
Published in Acta Endoscopica (1991)
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by Orlando, R., Sawadogo, A.
Published in Acta Endoscopica (1991)
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Published in Acta Endoscopica (1991)
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by Axon, A. T. R.
Published in Acta Endoscopica (1991)
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Published in Acta Endoscopica (1990)
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