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 familie... oleh Allison A Appleton, Rebecca Rogers, Sarah McCarthy, Betty Lin, Rachel R Middleton, Bethlehem Terefe, Beth J Feingold, Tara Lynch, Alex L Pieterse, Annabelle E Armah, Lydia F Bierce, Amanda M Flagg