6Martina B,Staub JJ,Gemsenjager E.Long term follow up after thyroidectomy incidence of recurrent goiter and functional results[J].Sehweiz Med Wochenschr,1992,122(46):1753-1756.
5WHO, UNECEF, ICCIDD. Indicators for assessing Iodine Deficiency Disorders and their control through salt iodization [R].World Heath Organization, 1994. 8-11.
6WHO, ICCIDD, UNECEF. How can we tell if we are getting the right amount of iodine[R]. IDD Newsletter, 2001,17(2) :28-29.
