Evaluating the impact of an intervention to increase uptake of modern contraceptives among adolescent girls (15-19 years) in Nigeria, Ethiopia and Tanzania: the Adolescents 360 quasi-experimental study protocol. - Atchison CJ; Mulhern E; Kapiga S; Nsanya MK; Crawford EE; Mussa M; Bottomley C; Hargreaves JR; Doyle AM (BMJ open, 2018)