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Han EC, Ryoo SB, Park JW, Yi JW, Oh HK, Choe EK, Ha HK, Park BK, Moon SH, Jeong SY, Park KJ.Han EC, et al. Among authors: ha hk.PLoS One. 2017 Jun 6;12(6):e0178920. doi: 10.1371/journal.pone.0178920. eCollection 2017.PLoS One. 2017.PMID: 28586376Free PMC article.
Ryoo SB, Oh HK, Ha HK, Choe EK, Moon SH, Park KJ.Ryoo SB, et al. Among authors: ha hk.J Korean Soc Coloproctol. 2012 Feb;28(1):56-60. doi: 10.3393/jksc.2012.28.1.56. Epub 2012 Feb 29.J Korean Soc Coloproctol. 2012.PMID: 22413083Free PMC article.
Oh HK, Ha HK, Shin R, Ryoo SB, Choe EK, Park KJ.Oh HK, et al. Among authors: ha hk.J Korean Surg Soc. 2012 Jun;82(6):394-6. doi: 10.4174/jkss.2012.82.6.394. Epub 2012 May 29.J Korean Surg Soc. 2012.PMID: 22708104Free PMC article.
Yoo HY, Shin R, Ha HK, Oh HK, Jeong SY, Park KJ, Kang GH, Kim WH, Park JG.Yoo HY, et al. Among authors: ha hk.J Korean Soc Coloproctol. 2012 Jun;28(3):160-4. doi: 10.3393/jksc.2012.28.3.160. Epub 2012 Jun 30.J Korean Soc Coloproctol. 2012.PMID: 22816060Free PMC article.
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Ryoo SB, Oh HK, Ha HK, Moon SH, Choe EK, Park KJ.Ryoo SB, et al. Among authors: ha hk.Hepatogastroenterology. 2014 Mar-Apr;61(130):336-42.Hepatogastroenterology. 2014.PMID: 24901136
Ryoo SB, Oh HK, Han EC, Ha HK, Moon SH, Choe EK, Park KJ.Ryoo SB, et al. Among authors: ha hk.World J Gastroenterol. 2014 Jun 21;20(23):7488-96. doi: 10.3748/wjg.v20.i23.7488.World J Gastroenterol. 2014.PMID: 24966620Free PMC article.