Effect of age on the functioning of hemostasis system during hip joint endoprosthesis Elena Volokitina, Irina Antropova, Anton Yershov, Dmitry Chelchushev and Sergey Kutepov BIO Web Conf., 22 (2020) 01014 Published online: 06 July 2020 DOI: 10.1051/bioconf/20202201014