Distribution of fitness effects caused by random insertion mutations in Escherichia coli Elena, Santiago F. ; Ekunwe, Lynette ; Hajela, Neerja ; Oden, Shenandoah A. ; Lenski, Richard E. Abstract Publication: Genetica Pub Date: March 1998 DOI: 10.1023/A:1017031008316 Bibcode: 1998Gen...102..349E