Sustained effect of health insurance and facility quality improvement on blood pressure in adults with hypertension in Nigeria: A population-based study - Hendriks, Marleen E.; Rosendaal, Nicole T.A.; Wit, Ferdinand W. N. M.; Bolarinwa, Oladimeji A.; Kramer, Berber; Brals, Daniella; Gustafsson-Wright, Emily; Adenusi, Peju; Brewster, Lizzy M.; Osagbemi, Gordon K.; Akande, Tanimola M.; Schultsz, Constance (Elsevier, 2016)