%0 Journal Article %T The use of controls in interrupted time series studies of public health interventions %A Lopez Bernal,, James %A Cummins,, Steven %A Gasparrini,, Antonio %J International Journal of Epidemiology %V 47 %N 6 %@ 0300-5771 %D 2018-12-01 %I Oxford University Press %~ DeepDyve