Comorbidities and Pregnancy Complications as Determinants of COVID-19 Severity in Pregnant Women: a Retrospective Study at a National Maternal Referral Center. - Bur, R.; Danukusumo, D.; Putra, M. A. R.; Talib, S. R.; Pramuktini, S.; Safanta, N.; Gebrina, M.; Dewi, F. E. S.; Dharmala, A. B.; Megawulandari, D. (Acta medica Bulgarica, 2026)