This document discusses intrauterine devices (IUDs) and intrauterine systems (IUSs). It provides data from several studies on expulsion and removal rates for the Paragard and Mirena IUDs, as well as continuation rates at 1 year. Dimensions for IUD/IUS placement are listed. The document then discusses the GynNext company and their development of contraceptive devices with the patient in mind, including IUDs, implants, and reversible sterilization methods. It notes potential benefits of GynNext devices over competitors. Finally, the document outlines GynNext's business strategy of establishing local specialized centers to best offer their products to communities.