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The effect of health insurance and health facility-upgrades on hospital deliveries in rural Nigeria: a controlled interrupted time-series study.
Brals D, Aderibigbe SA, Wit FW, van Ophem JCM, van der List M, Osagbemi GK, Hendriks ME, Akande TM, Boele van Hensbroek M, Schultsz C. Brals D, et al. Among authors: van ophem jcm. Health Policy Plan. 2017 Sep 1;32(7):990-1001. doi: 10.1093/heapol/czx034. Health Policy Plan. 2017. PMID: 28402420 Free PMC article.