Zwart, J., Helgeland, J., Småstuen, M. C., Storheim, K., Grotle, M., Fjeld, O., . . . Solberg, T. K. Lumbar spine surgery across 15 years: Trends, complications and reoperations in a longitudinal observational study from Norway. BMJ Publishing Group.
Chicago Style (17th ed.) CitationZwart, John-Anker, Jon Helgeland, Milada Cvancarova Småstuen, Kjersti Storheim, Margreth Grotle, Olaf Fjeld, Lars Grøvle, and Tore K. Solberg. Lumbar Spine Surgery Across 15 Years: Trends, Complications and Reoperations in a Longitudinal Observational Study from Norway. BMJ Publishing Group.
MLA (9th ed.) CitationZwart, John-Anker, et al. Lumbar Spine Surgery Across 15 Years: Trends, Complications and Reoperations in a Longitudinal Observational Study from Norway. BMJ Publishing Group.