Efforts to improve maternal health outcomes are taking shape in Trenton, long seen as a 'birthing desert' in a state with above-average maternal mortality rates and racial disparities that leave Black women nearly seven times more likely to die during pregnancy, birth or the postpartum period, compared to white women. (Photo: Dana Williams, top, and Khalyson McDuffie, doulas with Birth in Color, a Virginia group that offers doula services for pr…