SRINIVASU, K.; VENKATESWARA RAO, J.; APPALA RAJU, N.; MUKKANTI, K. Simultaneous RP-HPLC Method for the Estimation of Formoterol Fumarate and Tiotropium Bromide in Pharmaceutical Dosage Forms. Asian Journal of Chemistry, [S. l.], v. 22, n. 5, p. 3943–3948, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/11633. Acesso em: 25 nov. 2024.