“Severe Injection Site Reactions After Subcutaneous Administration of Sayana®: A Retrospective, Post-Marketing Analysis of WHO and Swiss Spontaneous Pharmacovigilance Reports”. Swiss Medical Weekly 147, no. 1920 (May 10, 2017): w14432. Accessed October 18, 2025. https://www.smw.ch/index.php/smw/article/view/2300.