00334nas a2200121   4500000000100000008004100001100001400042700002000056700001300076245010100089300000800190022001400198       2021                            d1 aS. Suissa1 aS. Dell'Aniello1 aP. Ernst00aTriple Inhaler versus Dual Bronchodilator Therapy in COPD: Real-World Effectiveness on Mortality  a1-9  a1541-2563