TY - BOOK AU - Singhal Smitha AU - University of Delhi. Faculty of Inter-disciplinary. and App. Sciences. Department of Microbiology ED - University of Delhi. Faculty of Inter-disciplinary. and App. Sciences. Department of Microbiology TI - Biological characterization of group a streptococci isolated from cases of rheumatic fever and rheumatic heart disease PY - 1995/// KW - MICROBIOLOGY ER -