「Long-acting muscarinic antagonist + long-acting beta agonist versus long-acting beta agonist + inhaled corticosteroid for COPD: A systematic review and meta-analysis.」 PMID: 26235837 http://www.ncbi.nlm.nih.gov/pubmed/26235837 PECO P : COPD患者4392人 E : LAMA＋LABA C : LABA＋ICS O : FEV1・SGRQ(…
