Techniques in Coloproctology

, Volume 22, Issue 12, pp 991–992 | Cite as

Comment on “A systematic review of minimally invasive surgery for retrorectal tumors”

  • I. J. Y. Wee
  • J. C.-Y. NguEmail author


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants performed by any of the authors.

Informed consent

For this type of study formal consent is not required.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
  2. 2.Department of SurgeryChangi General HospitalSingaporeSingapore

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