9 Saettini Saettini F F Poli Poli C C Vengoechea Vengoechea J J Bonanomi Bonanomi S S Orellana Orellana JC JC Fazio Fazio G G et al et al Absent B Cells, Agammaglobulinemia, and Hypertrophic Cardiomyopathy in Folliculin-Interacting Protein 1 Deficiency Absent B Cells, Agammaglobulinemia, and Hypertrophic Cardiomyopathy in Folliculin-Interacting Protein 1 Deficiency Blood Blood 2021 2021 137 137 4 4 493 493 499 499 10.1182/blood.2020006441 10.1182/blood.2020006441 32905580 32905580. This evidence concerns the gene FNIP1 and agammaglobulinemia.