%0 Journal Article %T Immunophenotypic Analysis of B Lymphocytes in Patients with Common Variable Immunodeficiency: Identification of CD23 as a Useful Marker in the Definition of the Disease %A Giuseppe Patuzzo %A Filippo Mazzi %A Antonio Vella %A Riccardo Ortolani %J ISRN Immunology %D 2013 %I Hindawi Publishing Corporation %R 10.1155/2013/512527 %U http://dx.doi.org/10.1155/2013/512527