Ortega E, Kostovetzky M, Larralde C
Mol Immunol. 1984 Oct;21(10):883-8. doi: 10.1016/0161-5890(84)90143-3.
Anti-DNP activity was found in normal human immunoglobulins with average affinities (10(4)-10(6) l/mole) and frequencies (15-2%) that correlate well with those expected from multispecific binding sites.