Mutations, duplication, and deletion of recombined switch regions suggest a role for DNA replication in the immunoglobulin heavy-chain switch.
Dunnick W, Wilson M, Stavnezer J. Mutations, duplication, and deletion of recombined switch regions suggest a role for DNA replication in the immunoglobulin heavy-chain switch. Mol Cell Biol. 1989 May; 9(5):1850-6.