Israel Silva Maia1, Mariângela Pimentel Pincelli1, Victor Figueiredo Leite2, João Amadera3, Anna Maria Buehler4
Maia1 IS, Pincelli1 MP, Leite2 VF, Amadera3 J, Buehler4 AM. Long-acting muscarinic antagonists vs. long-acting β2 agonists in COPD exacerbations: a systematic review and meta-analysis. J Bras Pneumol. 2017;43(4):302-312