%0 Journal Article %T Evaluation of crystal violet blood agar for primary isolation and identification of group a - B haemolytic streptococcus %A Chawla K %A Rao P %J Indian Journal of Medical Microbiology %D 2004 %I Medknow Publications %U http://www.ijmm.org/article.asp?issn=0255-0857;year=2004;volume=22;issue=3;spage=201;epage=201;aulast=Chawla