Targeting strategies of mHealth interventions for maternal health in low and middle-income countries: a systematic review protocol.
Onaedo U C IlozumbaIbukun-Oluwa Omolade AbejirindeMarjolein DielemanAzucena BardajíJacqueline E W BroerseSara Van BellePublished in: BMJ open (2018)
CRD42017072280.