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Dennis, Mardieh L., Timothy Abuya, Oona Maeve Renee Campbell, Lenka Benova, Angela Baschieri, Matteo Quartagno, and Benjamin Bellows. "Evaluating the Impact of a Maternal Health Voucher Programme On Service Use Before and After the Introduction of Free Maternity Services in Kenya: A Quasi-experimental Study." BMJ Glob Health 2018.

Dennis, Mardieh L., et al. "Evaluating the Impact of a Maternal Health Voucher Programme On Service Use Before and After the Introduction of Free Maternity Services in Kenya: A Quasi-experimental Study." BMJ Glob Health 2018.