Memtsoudis SG, Poeran J, Zubizarreta N, Cozowicz C, Morwald EE, Mariano ER, Mazumdar M. Association of Multimodal Pain Management Strategies with Perioperative Outcomes and Resource Utilization: A Population-based Study. Anesthesiology 128(5): 891-902, 2018 DOI: 10.1097/ALN.0000000000002132