524,520 BERRY R.J. /red./ Radiology. Proceedings of the XIII International Congress of Radiology,Madrid,15-20 , October, 1973. Ed. J.Gomez Lopez, J.Bonmati. Co-ed. R. J. Berry, J. W. Hopewell. Amsterdam 1974 Excerpta Medica; Hew York, American Elsevier Publishing Co. Inc., 8° Excerpta Medica International Congress Series no 339. Vol. 2. Radiotherapy, nuclear medicine physics, technique and data processing.s. XV, nib. 1, 703, ilustr.