世界各地均有地方性甲状腺肿发生,其主要原因是饮食中缺碘。然而在缺碘水平相同的地区,地甲肿发病率也有差异。这表明还有其它因素在起作用。用甘兰饲喂兔子出现甲状腺肿,使第一次注意到食品中可能存在致甲状腺肿物。此 Local goiter occurs around the world, the main reason is the lack of iodine in the diet. However, in the same area of ​​iodine deficiency, the incidence of gonorrhea is also different. This shows that there are other factors at work. Gander fed rabbits with goiter, for the first time to note the possible presence of thyroid tumor in food. this