The first two electron linear accelerators in South Africa.
D001842:Bone and Bones / Q000528:radiation effects; D004583:Electrons; D009132:Muscles / Q000528:radiation effects; D011830:Radiation Effects; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D012867:Skin / Q000528:radiation effects; D013019:South Africa