Adamczyk-Gruszka, Olga, Anna Zwierzyńska, Justyna Płusajska, and Jakub Gruszka. 2022. “Factor XI Deficiency As a Clinical Problem in Labor - a Case Report”. Journal of Education, Health and Sport 12 (6):94-104. https://doi.org/10.12775/JEHS.2022.12.06.009.