Opioid prescribing to people on orthopaedic waiting lists during the COVID-19 pandemic in England: a study using OpenSAFELY-TPP
Higgins R., Smith RM., Dillingham I., Quinlan J., Speed V., Curtis HJ., Wood C., Wiedemann M., Jani M., Bacon SC., Mehrkar A., Goldacre B., MacKenna B., Schaffer AL.