00449nas a2200157   4500000000100000008004100001100001400042700002100056700001400077700001400091700001400105700001300119700001300132245013200145022001400277       2021                            d1 aC. Morgan1 aS. Jenkins-Jones1 aR. Knaggs1 aC. Currie1 aP. Conway1 aC. Poole1 aE. Berni00aCharacterization and Associated Costs of Constipation Relating to Exposure to Strong Opioids in England: An Observational Study  a0149-2918