Longer Training for Radiographers. Issue 5432 (13th February 1965) - MacDonald, J. S.; Grainger, Ronald G.; Isaacson, A. H.; Bernstein, D. C.; Lea, P. A. W.; Purcell, P.; Thomas, M. Lea; Green, B.; Morris, J. Leon; Davidson, John K.; James, Wilson B.; Grossart, Kenneth W. M.; et al.