Open Access Open Badges Study protocol

The HubBLe trial: haemorrhoidal artery ligation (HAL) versus rubber band ligation (RBL) for haemorrhoids

Jim Tiernan, Daniel Hind, Angus Watson, Allan J Wailoo, Michael Bradburn, Neil Shephard, Katie Biggs* and Steven Brown

BMC Gastroenterology 2012, 12:153  doi:10.1186/1471-230X-12-153

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