Nature Genet. 22, 231–238 (1999).

We inadvertently omitted Nila Shaw from our list of authors. The correct author list follows.

Michele Cargill, David Altshuler, James Ireland, Pamela Sklar, Kristin Ardlie, Nila Patil, Nila Shaw, Charles R. Lane, Esther P. Lim, Nilesh Kalyanaraman, James Nemesh, Liuda Ziaugra, Lisa Friedland, Alex Rolfe, Janet Warrington, Robert Lipshutz, George Q. Daley & Eric S. Lander