Professor of Orthopedics

Mayo Clinic College of Medicine and Science, USA

Professor of Neurosurgery

Mayo Clinic College of Medicine and Science, USA

Consultant

Division of Orthopedic Spine Surgery, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA

Emeritus

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA

Supplemental

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA

MD

Georgetown University School of Medicine, USA

1981

American Academy of Orthopaedic Surgeons

1992

American Board of Orthopaedic Surgery (ABOS)

1992

Congress of Neurological Surgeons (2013)

American Orthopaedic Association (2003)

American Academy of Orthopaedic Surgeons (1989)

American Board of Orthopaedic Surgery (1977)

Cervical Spine Research Society

Council of Surgical Spine Societies (COSSS)

Lumbar Spine Research Society

https://pubmed.ncbi.nlm.nih.gov/22146283/

https://pubmed.ncbi.nlm.nih.gov/23818029/

https://pubmed.ncbi.nlm.nih.gov/24509005/

https://pubmed.ncbi.nlm.nih.gov/26502352/

https://pubmed.ncbi.nlm.nih.gov/27853656/