Partial reconstitution of the CD4+-T-cell compartment in CD4 gene knockout mice restores responses to tuberculosis DNA vaccines., D'Souza, Sushila, Romano Marta, Korf Johanna, Wang Xiao-Ming, Adnet Pierre-Yves, and Huygen Kris , Infect Immun, 2006 May, Volume 74, Issue 5, p.2751-9, (2006)