The global need and availability of blood products: a modelling study

Blood transfusions are an important resource of every health-care system, with often limited supply in low-income and middle-income countries; however, the degree of unmet need for blood transfusions is often unknown. We therefore aimed to estimate the blood transfusion need and supply at national level to determine gaps in transfusion services globally.We did a modelling study involving 195 countries and territories. We used blood component...