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1تقرير
المصدر: Optimizing the Use of Entonox® During Screening Colonoscopy: an Open Randomised Controlled Trial
الوصول الحر: https://clinicaltrials.gov/ct2/show/NCT01865721Test
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2تقرير
المصدر: A Prospective Randomised Comparison of Cold Snare Polypectomy Versus Cold Snare Pseudosuction Technique
الوصول الحر: https://clinicaltrials.gov/ct2/show/NCT02208401Test
