Expression of concern: epidural co-administration of dexmedetomidine and levobupivacaine improves the gastrointestinal motility function after colonic resection in comparison to co-administration of morphine and levobupivacaine

HIGHLIGHTS

• who: The PLOS ONE Editors from the The Institutional Research Board (IRB) approval document (published as , Information in [1]) reports a study program start date that precedes the ethical approval dateThe corresponding author indicated that the planned start date changed and that the patient enrollment dates reported in the Methods section of the article are correct. A representative of the Harbin Medical University Ethics Review Committee stated that the study commenced after the ethical approval date of , March, . . have published the research: Expression of Concern: Epidural Co-Administration of Dexmedetomidine and Levobupivacaine Improves the Gastrointestinal Motility Function . . .
  

   

  

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