An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Polok M, Patkowski D, Apoznański W, Dorobisz U, Laska E, Chrzan R.Polok M, et al. Among authors: chrzan r.J Laparoendosc Adv Surg Tech A. 2010 Apr;20(3):277-80. doi: 10.1089/lap.2009.0149.J Laparoendosc Adv Surg Tech A. 2010.PMID: 19895211
Chrzan R, Klijn AJ, Kuijper CF, Dik P, de Jong TP.Chrzan R, et al.J Laparoendosc Adv Surg Tech A. 2014 Jul;24(7):513-7. doi: 10.1089/lap.2013.0540. Epub 2014 May 20.J Laparoendosc Adv Surg Tech A. 2014.PMID: 24844777
Chrzan R, Klijn AJ, Dik P, de Jong TP.Chrzan R, et al.J Laparoendosc Adv Surg Tech A. 2010 Apr;20(3):293-6. doi: 10.1089/lap.2009.0185.J Laparoendosc Adv Surg Tech A. 2010.PMID: 19943779