References
- Hauge, T. (1954) Catheter vertebral angiography. Acta radiol. Suppl., 109
- Lindgren, E. (1950) Percutaneous angiography of the vertebral artery. Acta radiol., 33, p. 389.
- Radner, S. (1951) Vertebral angiography by catheterization. Acta radiol. Suppl., 87
- Sjogren, S. E. (1953) Percutaneous vertebral angiography. Acta radiol., 40, p. 113.