2.1. Ethics and Participants
MAY
Ethical approval was obtained from the Iaso Hospital Institutional Review Board (approval code #b31052019). Apparently healthy pregnant women who were outpatients of the IASO Maternity Hospital, Obstetrics—Gynecology (Athens, Greece), were invited to participate in the study via written announcements (posters) at the clinic facilities and the website. Women willing to participate were informed in detail about the aims, methods, benefits, and potential harms of the study. A signed informed consent was obtained from all subjects involved, and a copy of the signed document was kept by each subject. The principles of the Declaration of Helsinki were adhered to throughout the intervention, while the ClinicalTrials.gov registry was acquired (NCT05634837). The intervention took place from May 2019 to May 2022. The inclusion and exclusion criteria are shown in 