KNEELAND, V A comparison of the carcinogenic effect of internal and external irradiation on the thyroid gland of the male Long-Evans rat. [electronic resource] - Endocrinology Nov 1957 - 574-81 p. digital Publication Type: Journal Article ISSN: 0013-7227 Standard No.: 10.1210/endo-61-5-574 doi Subjects--Topical Terms: AnimalsIodineIodine RadioisotopesMaleNeoplasmsRatsRats, Long-EvansThyroid GlandThyroid NeoplasmsX-Rays--adverse effects