A comparative study of isolation, identification and grouping of streptococcal isolates from throat swabs of school going children applying different methods of extraction for antigen. International Journal of Pharmaceutical Chemistry, [S. l.], v. 7, n. 7, p. 108–114, 2017. DOI: 10.7439/ijpc.v7i7.4249. Disponível em: https://ssjournals.co.in/index.php/ijpc/article/view/4249. Acesso em: 16 feb. 2026.