E-mail a Link to a Someone Who you'd like to recommend.
E-mail a link to the following content:
Song JH, Ko KS, Lee JY, Baek JY, Oh WS, Yoon HS, Jeong JY, Chun J.  Identification of Essential Genes in Streptococcus pneumoniae by Allelic Replacement Mutagenesis.  Mol. Cells 2005;19:365-374.