W. Chirdchim, P. Wanichsetakul, K. Suwannarurk, and J. Patumanond, “Intraoperative Outcomes of Intra-Umbilical Incision VS Infra-Umbilical Incision in Post-Partum Tubal Sterilization: A Randomized Control Trial Study”, Rama Med J, vol. 40, no. 3, pp. 29–37, Sep. 2017.