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We read with interest the article by Sung et al (Gut 2007;56:1364–73). In this study, Sung et al retrospectively reviewed 15 trials with non-variceal upper gastrointestinal bleeding, and compared subjects who received haemoclip application, thermocoagulations or injections. Application of haemoclips is superior to injection alone but comparable with thermocoagulation in achieving haemostasis.
There is one key point in this study that needs to be discussed. There is one technical problem regarding the application of haemoclips. The haemoclip must meet …