100
Participants
Start Date
July 1, 2023
Primary Completion Date
July 1, 2025
Study Completion Date
July 1, 2028
Folic Acid Oral Tablet
Dietary Supplement: Folic acid 2.5mg/day
Placebo
Dietary Supplement: Placebo
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
OTHER