V. LohsiriwatD. LohsiriwatMahidol University2018-11-092018-11-092014-01-01Techniques in Coloproctology. Vol.18, No.12 (2014), 1177-11781128045X112363372-s2.0-84914102371https://repository.li.mahidol.ac.th/handle/20.500.14594/34577Mahidol UniversityMedicineAtraumatic O-ring wound retractor reduces postoperative painArticleSCOPUS10.1007/s10151-014-1225-x