The antigenic structure of proteins: a reappraisal - Benjamin, D C; Berzofsky, J A; East, I J; Gurd, F RN; Hannum, C; Leach, S J; Margoliash, E; Michael, J G; Miller, A; Prager, E M; Reichlin, M; Sercarz, E E; Smith-Gill, S J; Todd, P E; Wilson, A C (Ann Rev Immunol, 1984)