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