The effect of a combined indomethacin and levonorgestrel-releasing intrauterine system on short-term postplacement bleeding profile: a randomized proof-of-concept trial - Fels, Lueder M.; Costescu, Dustin; Vieira, Carolina Sales; Peipert, Jeffrey F.; Lukkari-Lax, Eeva; Hofmann, Birte M.; Reinecke, Isabel; Klein, Stefan; Wiesinger, Katrin; Lindenthal, Bernhard; Speer, Runa (American Journal of Obstetrics and Gynecology, 2023)