Original Research Published on 19 Jul 2019 The German National Registry of Primary Immunodeficiencies (2012–2017) in Primary Immunodeficiencies Sabine M. El-HelouAnika-Kerstin BiegnerSebastian BodeStephan R. EhlMaximilian HeegMaria E. MaccariHenrike RitterbuschCarsten SpeckmannStephan RuschRaphael Scheible Frontiers in Immunology doi 10.3389/fimmu.2019.01272 40,655 views 86 citations