OPAL: a randomised, placebo-controlled trial of opioid analgesia for the reduction of pain severity in people with acute spinal pain—a statistical analysis plan

por Jones, Caitlin MP, Lin, Chung-Wei Christine, Day, Richard O., Koes, Bart W., Latimer, Jane, Maher, Chris G., McLachlan, Andrew, Billot, Laurent
Publicado 2022