Update on: Firsttrimester Diagnosis and Therapy @ 11 - 13 +6 weeks' gestation : Amendment to the Guideline of DEGUM, ÖGUM, SGUMGG, DGGG, ÖGG, Gynecologie Suisse, DGPM, DGPGM, BVF, ACHSE (AWMF S2e LL085-002 1.1.2024) (https://register.awmf.org/de/leitlinien/detail/085-002). - von Kaisenberg CS; Kozlowski P; Kagan KO; Hoopmann M; Heling KS; Chaoui R; Klaritsch P; Pertl B; Burkhardt T; Tercanli S; Frenzel J; Mundlos C (Geburtshilfe und Frauenheilkunde, 2025)