GEPHARD - the PUP Cohort of the `Standing Commission Paediatrics of the Society for Thrombosis and Haemostasis Research´ - A Progress Report - Bidlingmaier, C.; Olivieri, M.; Escuriola-Ettingshausen, C.; Kentouche, K.; Eberl, W.; Zieger, B.; Kurnik, K.; Königs, C.; GEPHARD Study Group (Hämostaseologie, 2019)