Influence of knowledge on iodine content in foodstuffs and prophylactic usage of iodized salt on urinary iodine excretion and thyroid volume of adults in southern Germany. - Metges,C.C.; Greil,W.; Gärtner,R.; Rafferzeder,M.; Linseisen,J.; Woerl,A.; Wolfram,G. (Z Ernährungswiss, 1996)