**Author details**

Dirk Wildemeersch1\*, Maciej Jóźwik<sup>2</sup> and Marcin Jóźwik<sup>3</sup>

\*Address all correspondence to: d.wildemeersch@skynet.be

1 Gynecological Outpatient Clinic and IUD Training Center, Ghent, Belgium

2 Department of Gynecology and Gynecologic Oncology, Medical University of Białystok, Białystok, Poland

3 Department of Gynecology and Obstetrics, Faculty of Medical Sciences, University of Varmia and Masuria, Olsztyn, Poland

Maciej Jóźwik and Marcin Jóźwik declare no conflict of interest. Dirk Wildemeersch is the developer of the frameless GyneFix® IUD, the frameless FibroPlant® LNG-IUS and the framed Femilis® LNG-IUS. He has also been involved in the development and optimization of new, innovative drug delivery systems for use in the uterus. Currently he acts as a trainer in the insertion procedure of GyneFix® during training sessions organized by commercial companies distributing the product. He is also advisor in devising new concepts in control‐ led release for contraception and gynecological treatment, and receives financial compensa‐ tion for these activities.
