00461    a2200157   4500020001500000082001600015100001800031245006200049260005800111300001500169440002600184650003100210650002400241650001400265700002400279  a9070785056  a613.28bDUN  aDunn, John T.  aA practical guide to the correction of iodine deficiency   aUnited NationsbWorld Health Organizationc1990g1990  a62p.c25cm  aTechnical manual No.3  aSprcific nutritive element  aPromotion of health  aDietetics  aHaar, Frits Van Der