Gamification for health promotion: systematic review of behaviour change techniques in smartphone apps.
Elizabeth A EdwardsJ LumsdenC RivasL SteedLindsey A EdwardsA ThiyagarajanR SohanpalH CatonC J GriffithsM R MunafòS TaylorR T WaltonPublished in: BMJ open (2016)
CRD42015029841.