title: Big challenge of iodine deficiency.
mesh_terms: D003677:Deficiency Diseases / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D007194:India / Q000453:epidemiology; D007455:Iodine / Q000172:deficiency*; D012307:Risk Factors
chemical_list: D007455:Iodine