PT - JOURNAL ARTICLE AU - Martin, Guillaume AU - Lenormand, Thomas TI - The distribution of beneficial and fixed mutation fitness effects close to an optimum AID - 10.1534/genetics.108.087122 DP - 2008 May 27 TA - Genetics 4099 - http://www.genetics.org/content/early/2008/05/27/genetics.108.087122.short 4100 - http://www.genetics.org/content/early/2008/05/27/genetics.108.087122.full