Girolami, Antonio, and Silvia Ferrari. (2020) 2021. “Worldwide Distribution of Prekallikrein (PK) Deficiency: The Defect Seems Mainly Concentrated in West African Countries and in the United States: Worldwide Distribution of PK Deficiency:”. Mediterranean Journal of Hematology and Infectious Diseases 13 (1):e2021014. https://doi.org/10.4084/mjhid.2021.014.