Eraslan Sahin , Mefkure, Mehmet Mete Kirlangic, Ilknur Col Madendag, and Mehmet Ak. 2022. “Is a First-Trimester Subchorionic Hematoma and Its Size a Risk for Preterm Premature Rupture of Membranes?”. Annals of Medical Research 29 (5):483-86. http://www.annalsmedres.org/index.php/aomr/article/view/4098.