1,421
Participants
Start Date
January 1, 2021
Primary Completion Date
June 30, 2023
Study Completion Date
July 25, 2023
Binom Vitamin D drops
Take 30 drops (relative to 1ml) once a day, directly into the mouth or with complementary foods added
Jianmei Xia, Hangzhou
Jianmei Xia
OTHER