[1] UNIV WASHINGTON, REG PRIMATE RES CTR, DEPT MED, DIV MED GENET, SEATTLE, WA 98195 USA
[2] USN HOSP, DEPT MED, HEMATOL SECT, SAN DIEGO, CA 92134 USA
[3] UNIV WASHINGTON, DEPT ANTHROPOL, SEATTLE, WA 98195 USA
[4] UNIV WASHINGTON, DEPT BIOCHEM, SEATTLE, WA 98195 USA