by Jones, S.N., Lees, W.R., Garber, S., Chisholm, R.A., Ainley, C.C., Su, R., Dowsett, J.F., Hatfield, A.H., Russell, R.C.G.
Published in Clinical radiology (01.11.1989)

by Girdwood, A.H., Marks, I.N., Hatfield, A.R.W., Bornman, P.C. & Kottler, R.E.
Published in South African medical journal (07.12.1985)

by Marks, I.N., Wright, J.P., Denyer, M., Hatfield, A., Girdwood, A.H. & Lucke, W.
Published in South African medical journal (01.01.1982)