450
Participants
Start Date
June 25, 2023
Primary Completion Date
August 30, 2024
Study Completion Date
August 30, 2024
antibiotic treatment
AT: Mother-infant cohort with antibiotic treatment group CS: Mother-infant cohort (Prophylactic antibiotics therapy) ND: Mother-infant cohort (Natural delivery)
RECRUITING
The Peking University People's Hospital, Beijing
Peking University People's Hospital
OTHER