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Liu HP, Chang WY, Chien ST, Hsu CW, Wu YC, Kung WC, Su CM, Liu PH.Liu HP, et al. Among authors: chien st.BMC Surg. 2017 Jun 26;17(1):74. doi: 10.1186/s12893-017-0270-6.BMC Surg. 2017.PMID: 28651560Free PMC article.Review.