Study on the Relationship Between Iodine Nutrition and Thyroid Diseases in the Elderly

Conditions:   Nutrition, Healthy;   Elderly Intervention:   Other: Naturally different iodine levels exposure Sponsors:   Tianjin Medical University;   Tianjin Medical University General Hospital;   Shandong Provincial Institute for Endemic Disease Control Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials