Original: Reading , MA : Helix Books , p. 111 He later worked at the University of California , Los Angeles , at Vanderbilt University ( until 1964 ) , in the Department of Genetics of the University of Washington , Seattle ( until 1968 ) and then at the Mathematics Institute of the University of Oslo .
Simplified: He later worked at the University of California , Los Angeles , at Vanderbilt University ( until 1964 ) , in the Department of Genetics of the University of Washington , Seattle ( until 1968 ) and then at the Mathematics Institute of the University of Oslo .