The Founders’ 400 and Chicago Perinatal Origins of Disease study protocol: Following a prospective, longitudinal cohort from early pregnancy through two years of postnatal life - Stephanie A. Fisher; Tonia N. Branche; Mary J. Akel; Jessica Dwyer; Gabriella Smith; Aaron Hamvas; Lynn M. Yee; Patrick C. Seed; Leena B. Mithal (PLoS ONE, 2025)