title: Molecular evolution: slippery introns and globin gene evolution.
authors.affiliation: Canadian Institute for Advanced Research, Program in Evolutionary Biology, Department of Biochemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4117, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Stoltzfus
authors.forename: W
authors.initials: W
authors.lastname: Ford Doolittle