title: WITHDRAWN: A dynamic quality assessment tool for laparoscopic hysterectomy to measure surgical outcomes.
abstract: The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.ajog.2016.07.004. The duplicate article has therefore been withdrawn.
  
  The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal
authors.affiliation: Department of Gynaecology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands.
authors.forename: Sara Rc
authors.initials: SR
authors.lastname: Driessen
authors.affiliation: Department of Medical Statistics, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands.
authors.forename: Erik W
authors.initials: EW
authors.lastname: Van Zwet
authors.affiliation: Institute of Psychology, Leiden University, PO Box 9555, 2300 RB, Leiden, The Netherlands.
authors.forename: Pascal
authors.initials: P
authors.lastname: Haazebroek
authors.affiliation: Department of Gynaecology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands.
authors.forename: Evelien M
authors.initials: EM
authors.lastname: Sandberg
authors.affiliation: Department of Gynaecology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands.
authors.forename: Mathijs D
authors.initials: MD
authors.lastname: Blikkendaal
authors.affiliation: Department of Gynaecology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands.
authors.forename: Andries Rh
authors.initials: AR
authors.lastname: Twijnstra
authors.affiliation: Department of Gynaecology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands; Department of Biomechanical Engineering, Delft University of Technology, PO Box 5, 2600 AA, Delft, The Netherlands. Electronic address: f.w.jansen@lumc.nl.
authors.forename: Frank Willem
authors.initials: FW
authors.lastname: Jansen
keywords: case-mix; laparoscopic hysterectomy; measure quality; outcome indicator; quality assessment; quality indicator; surgical performance