Since milk was an essential part of the Norwegian diet, the incidence of goiter decreased in the population. See also
Basil Hetzel
Lugols iodine
International Council for the Control of Iodine Deficiency Disorders

References
Further reading
Kotwal A, Priya R, Qadeer I (2007). "Goiter and other iodine deficiency disorders: A systematic review of epidemiological studies to deconstruct the complex web". Arch. Med. Res. 38 (1): 1–14. doi:10.1016/j.arcmed.2006.08.006. PMID 17174717. == External links ==
Ismo may refer to:

-ism in Spanish, Portuguese, Esperanto and Italian
Ismo, a brand name for isosorbide mononitrate
Ismo Leikola, Finnish comedian