External validity in a multicenter randomized clinical trial of proximal humeral fractures: the DelPhi trial.
Elias TallaySondre K LindbergSindre Lee-ØdegårdJonas BjordalAlexander N FraserJan Erik MadsenTore FjalestadPublished in: European journal of orthopaedic surgery & traumatology : orthopedie traumatologie (2021)
Level 4.