Molecular analysis of rpoB gene mutations in rifampicin resistant Mycobacterium tuberculosis isolates by multiple allele specific polymerase chain reaction in Puducherry, South Ind... oleh Ravibalan Thirumurugan, Maruthai Kathirvel, Kommoju Vallayyachari, Kesavan Surendar, Antony V. Samrot, Muthuraj Muthaiah