R. Bullock

发表

J. Patterson, I. Bone, A. Mendelow, 1984, South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde.

D. Grosset, J. Straiton, I. McDonald, 1993, British journal of neurosurgery.

J. Brock‐Utne, J. V. van Dellen, R. Bullock, 1988, Surgical neurology.