Fig. 3From: Recent trends in therapeutic strategies for repairing endometrial tissue in intrauterine adhesionBiological barriers. (A) Human amniotic membrane (AM) originates from placenta. (B) Urinary bladder matrix (UBM) is a derived extracellular matrix (ECM) from porcine bladder with an intact basement membrane. (C) Platelet-rich plasma (PRP) was extracted from fresh whole blood after two centrifugations. (D) Small intestine submucosa (SIS) is applied as a decellularized matrix derived from small intestinal segments of porcineBack to article page