by Penlington, G. Napier
Published in British Medical Journal (19.02.1966)

by Penlington, G. Napier
Published in British Medical Journal (10.12.1966)

by Allwood, M. J., Dukes, D. C., Dyde, J. A., Gray, Ian R., Ryder, G. H., Williams, W. G., Penlington, G. Napier, Pilcher, Jeremy
Published in British Medical Journal (18.05.1974)

by Penlington, G. Napier
Published in British medical journal (25.05.1974)

by Missen, Janet
Published in British Medical Journal (10.12.1966)