The association between visceral fat accumulation caused by high-dose folic acid supplementation in the first trimester and gestational diabetes mellitus: protocol for a nested case-control study in a cohort study | BMC Pregnancy and Childbirth
Study design This is an observational prospective and longitudinal single-center study (cohort registration: https://www.chictr.org.cn/showproj.html?proj=194426..). In addition, to explore…