The aim of the project "SYMPHONY: Orchestrating personalized treatment for patients with bleeding disorders" is to establish best treatment choice for each individual with a bleeding disorder based on bleeding tendency. This will be achieved by improving current diagnostic tests to measure hemostatic potential and by performing fundamental research into the pathophysiology behind interindividual differences in bleeding phenotype and treatment response, using novel techniques such as proteomics, and both IPSc and endothelial cellular systems.