7,315
Participants
Start Date
September 30, 2015
Primary Completion Date
December 31, 2019
Study Completion Date
December 31, 2019
Vitamin B Complex and Folic Acid
Daily oral dose containing 2 mg vitamin B1, 2 mg vitamin B2, 2 mg vitamin B6, 2 μg vitamin B12, 2 mg calcium pantothenate, 15 mg nicotinamide and 0.4 mg folic acid.
Iron and Folic Acid
Daily oral dose of 60 mg iron and 0.4 mg folic acid.
Folic Acid
Daily oral dose of 0.4 mg folic acid.
Xi'an Jiaotong University College of Medicine, Xi'an
Xi'an Jiaotong University
OTHER