Journal Article
                        
                        Gomez, Gabriela B, Nicola  Foster, Daniella  Brals, Heleen E Nelissen, Oladimeji A Bolarinwa, Marleen E Hendriks, Alexander C Boers, Diederik  Eck, Nicole  Rosendaal, and Peju  Adenusi.  
"Improving maternal care through a state-wide health insurance program: a cost and cost-effectiveness study in rural Nigeria." PloS one 10, no. 9 (2015): e0139048.