%0 Journal Article %T Use of text-mining methods to improve efficiency in the calculation of drug exposure to support pharmacoepidemiology studies %A McTaggart, Stuart %A Nangle, Clifford %A Caldwell, Jacqueline %A Alvarez-Madrazo, Samantha %A Colhoun, Helen %A Bennie, Marion %J International Journal of Epidemiology %V 47 %N 2 %P 617-624 %@ 0300-5771 %D 2018-04-01 %I Oxford University Press %~ DeepDyve