Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724, USA. kclark@cshl.edu|Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724, USA. kclark@cshl.edu|Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724, USA. kclark@cshl.edu|Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724, USA. kclark@cshl.edu|Cold Spring Harbor Laboratories, Cold Spring Harbor, NY 11724, USA. kclark@cshl.edu