research The Efficacy and Safety of Making Rat Hypothyroidism Model through Intramuscular Injection of 131Iodine September 2025 Intramuscular injection of 131I is a safe and effective way to induce hypothyroidism in rats without harming muscle tissue.
research Accumulation of I131 by the skin and hair of animals and man December 1963 in “Bulletin of Experimental Biology and Medicine” Radioiodine-131 significantly accumulates in skin and hair.