1,000
Participants
Start Date
September 30, 2011
Primary Completion Date
September 30, 2013
Study Completion Date
September 30, 2013
thyroid screening
The thyroid function and antibody will be measured immediately. The subclinical hypothyroidism will be treated individually.
Peking Union Medical College Hospital, Beijing
Beijing Municipal Science & Technology Commission
OTHER
Peking Union Medical College Hospital
OTHER