RETRACTED: Local hemostatic biomaterial based on native collagen O.I. Radjabov, A.Y. Otajonov, K.R. Baratov and L.B. Azimova E3S Web Conf., 420 (2023) 09004 Published online: 04 September 2023 DOI: 10.1051/e3sconf/202342009004