Higginbottom, G. M., Evans, C., Morgan, M., Bharj, K. K., Eldridge, J., & Hussain, B. (2017). Interventions that improve maternity care for immigrant women in the UK: protocol for a narrative synthesis systematic review. BMJ Open, 7(7), Article e016988. https://doi.org/10.1136/bmjopen-2017-016988