1. The Neutral Theory of Molecular Evolution;Kimura,1983
2. Slightly deleterious mutant substitutions in evolution;Ohta;Nature,1973
3. The Causes of Molecular Evolution;Gillespie,1991
4. Molecular evidence for natural selection;Kreitman;Annu. Rev Ecol. Syst.,1995
5. Sequence divergence, functional constraint, and selection in protein evolution;Fay;Annu. Rev. Genomics Hum. Genet.,2003