Early botulinum toxin injection reduces pain after hemorrhoidectomy: a pilot study.
Yi-Chiao ChengJacqueline Yu-Min BehPo-Hsien WuNien-Ying TsaiShu-Wen JaoPublished in: Techniques in coloproctology (2021)
Identifier: NCT04485780 on ClinicalTrials.gov (retrospectively registered).