PD-1+ CD4 T cells are associated with HIV reservoir size and impaired function of T follicular helper cells in children and young adults on long-term viral control - S. Rinaldi; V. Dinh; S. Pallikkuth; L. De Armas; R. Pahwa; N. Cotugno; E. Nastouli; C. Foster; P. Palma; S. Pahwa (Elsevier, 2019)