A subset of HLA-I peptides are not genomically templated: Evidence for cis- and trans-spliced peptide ligands by Faridi, P, Li, C, Ramarathinam, S, Vivian, J, Illing, P, Mifsud, N, Ayala, R, Song, J, Gearing, L, Hertzog, P, Ternette, N, Rossjohn, J, Croft, N, Purcell, A