Associations between introduction and withdrawal of a financial incentive and timing of attendance for antenatal care and incidence of small for gestational age: natural experimental evaluation using interrupted time series methods.
BMJ Open. Feb 2018
(DOI : 10.1136/bmjopen-2017-017697)
The international journal of behavioral nutrition and physical activity. Mar 2017
(DOI : 10.1186/s12966-017-0589-5)
Bell R, Glinianaia SV, Waal ZV, Close A, Moloney E, Jones S, Araújo-Soares V, Hamilton S, Milne EM, Shucksmith J, Vale L, Willmore M, White M, and Rushton S
Tobacco control. Oct 2016