Gomez, Irma Douglas, Marilia de Dirceu Silva, Maria Poliana Bueno, Dirceu Solé, and Charles Kirov Naspitz. “Protective Effects of Different Doses of Inhaled Fenoterol on Methacholine-Induced Bronchoconstriction in Asthmatic Children”. São Paulo Medical Journal 116, no. 6 (November 11, 1998): 1834–1837. Accessed October 16, 2025. https://periodicosapm.emnuvens.com.br/spmj/article/view/2383.