The Birth and Beyond (BABY) study: protocol for a birth cohort study investigating the social and environmental determinants of pregnancy-related outcomes in Black American families. - Lin B; Middleton RR; Terefe B; Appleton AA; Feingold BJ; Lynch T; Pieterse AL; Rogers R; Armah AE; Bierce LF; Flagg AM; McCarthy S (BMJ open, 2024)