Fortification of bread with iodized salt corrected iodine deficiency in school-aged children, but not in their mothers: a national cross-sectional survey in Belgium., Vandevijvere, Stefanie, Bensouda Mourri Ahmed, Amsalkhir Sihame, Avni Freddy, Van Oyen Herman, and Moreno-Reyes Rodrigo , Thyroid, 2012 Oct, Volume 22, Issue 10, p.1046-53, (2012)