ULLAH, M. A Study on Spiramycine in Acute Tonsillitis and Sinusitis. Journal of Postgraduate Medical Institute, [S. l.], v. 9, n. 2, 2011. Disponível em: https://www.jpmi.org.pk/index.php/jpmi/article/view/503. Acesso em: 7 oct. 2022.