APA (7th ed.) Citation

Ritter, L., Liebert, A., Eibl, T., Schmid, B., Steiner, H., & Kerry, G. Risk factors for prolonged length of stay after first lumbar microdiscectomy. Elsevier.

Chicago Style (17th ed.) Citation

Ritter, L., A. Liebert, T. Eibl, B. Schmid, H.H Steiner, and G. Kerry. Risk Factors for Prolonged Length of Stay After First Lumbar Microdiscectomy. Elsevier.

MLA (9th ed.) Citation

Ritter, L., et al. Risk Factors for Prolonged Length of Stay After First Lumbar Microdiscectomy. Elsevier.