CLAYTON, B E Implantation of radioactive yttrium in the pituitary fossa of the guinea pig. [electronic resource] - The British journal of radiology Feb 1961 - 120-8 p. digital Publication Type: Journal Article ISSN: 0007-1285 Standard No.: 10.1259/0007-1285-34-398-120 doi Subjects--Topical Terms: Guinea PigsHumansPituitary Gland--radiation effectsRadioactivityYttriumYttrium Radioisotopes