Valle MT, Megiovanni AM, Merlo A, Li Pira G, Bottone L, Angelini G, Bracci L, Lozzi L, Huygen K, Manca F. Epitope focus, clonal composition and Th1 phenotype of the human CD4 response to the secretory mycobacterial antigen Ag85. Clin Exp Immunol. 2001 Feb;123(2):226–32. PMID: 11207652; PMCID: PMC1905982.