“PREVALENCE STUDY OF GROUP A STREPTOCOCCI AND ITS ANTIMICROBIAL SENSITIVITY PATTERN IN UPPER RESPIRATORY TRACT INFECTIONS OF ALL AGE GROUPS IN A TERTIARY HEALTH CARE CENTRE IN CHENGALPET DISTRICT”, Journal of Pharmaceutical Negative Results, pp. 2051–2059, Oct. 2022, doi: 10.47750/pnr.2022.13.S01.241.