Han EC, Oh HK, Ha HK, Choe EK, Moon SH, Ryoo SB, et al. Favorable surgical treatment outcomes for chronic constipation with features of colonic pseudo-obstruction. World J Gastroenterol. 2012;18(32):4441-6.
Oh HK, Ha HK, Shin R, Ryoo SB, Choe EK, Park KJ. Jejuno-jejunal fistula induced by magnetic necklace ingestion. J Korean Surg Soc. 2012;82(6):394-6.
Ryoo SB, Oh HK, Ha HK, Choe EK, Moon SH, Park KJ. Operative treatment with a laparotomy for anorectal problems arising from a self-inserted foreign body. J Korean Soc Coloproctol. 2012;28(1):56-60.
Song IH, Ha HK, Choi SG, Jeon BG, Kim MJ, Park KJ. Analysis of risk factors for the development of incisional and parastomal hernias in patients after colorectal surgery. J Korean Soc Coloproctol. 2012;28(6):299-303.
Yoo HY, Shin R, Ha HK, Oh HK, Jeong SY, Park KJ, et al. Does t3 subdivision correlate with nodal or distant metastasis in colorectal cancer? J Korean Soc Coloproctol. 2012;28(3):160-4.
Suh YJ, Ha HK, Oh HK, Shin R, Jeong SY, Park KJ. Rectal perforation caused by anal stricture after hemorrhoid treatment. Ann Coloproctol. 2013;29(1):28-30.
Choi JH, Jeon BG, Choi SG, Han EC, Ha HK, Oh HK, et al. Rectourethral fistula: systemic review of and experiences with various surgical treatment methods. Ann Coloproctol. 2014;30(1):35-41.
Oh HK, Han EC, Ha HK, Choe EK, Moon SH, Ryoo SB, et al. Surgical management of colonic diverticular disease: discrepancy between right- and left-sided diseases. World J Gastroenterol. 2014;20(29):10115-20.
Ryoo SB, Oh HK, Han EC, Ha HK, Moon SH, Choe EK, et al. Complications after ileal pouch-anal anastomosis in Korean patients with ulcerative colitis. World J Gastroenterol. 2014;20(23):7488-96.
Han EC, Ryoo SB, Park BK, Park JW, Lee SY, Oh HK, et al. Surgical outcomes and prognostic factors of emergency surgery for colonic perforation: would fecal contamination increase morbidity and mortality? Int J Colorectal Dis. 2015;30(11):1495-504.
Kim MJ, Park JW, Ha HK, Jeon BG, Shin R, Ryoo SB, et al. Initial experience of transanal total mesorectal excision with rigid or flexible transanal platforms in cadavers. Surg Endosc. 2016;30(4):1640-7.
Song MJ, Lee KM, Kim IB, Ha H-K, Kim WS, Moon HJ, et al. Acute Care Surgery Model for Emergency Cholecystectomy. Journal of Acute Care Surgery. 2016;6(2):57-61.
Han EC, Ryoo SB, Park JW, Yi JW, Oh HK, Choe EK, et al. Oncologic and surgical outcomes in colorectal cancer patients with liver cirrhosis: A propensity-matched study. PLoS One. 2017;12(6):e0178920.
Ryoo SB, Oh HK, Ha HK, Han EC, Kwon YH, Song I, et al. Outcomes of surgical treatments for rectovaginal fistula and prognostic factors for successful closure: a single-center tertiary hospital experiences. Ann Surg Treat Res. 2019;97(3):149-56.
Lee KW, Kim HB, Lee SH, Ha HK. Changes in Weight and Health-Related Behavior Using Smartphone Applications in Patients With Colorectal Polyps. J Nutr Educ Behav. 2019;51(5):539-46.
Ha HK, Lee KG, Choi KK, Kim WS, Cho HR. Effect of bupivacaine on postoperative pain and analgesics use after single-incision laparoscopic appendectomy: double-blind randomized study. Ann Surg Treat Res. 2020;98(2):96-101.