Article History
Received: 25 January 2022
Accepted: 22 September 2022
First Online: 1 December 2022
Declarations
:
: The study protocol was approved by the Institutional Research Board of Mansoura Faculty of Medicine (code number: MD.18.09.87 on October 30, 2018). Informed written consent was obtained from each participated pregnant woman. Confidentiality and personal privacy were respected at all levels of the study. The official approval of the district health management and directorate of health affairs in Mansoura was obtained.
: Not applicable.
: The authors declare that they have no competing interests.