Countering imbalanced datasets to improve adverse drug event predictive models in labor and delivery. - Laritza M. Taft; R. Scott Evans; Chi-Ren Shyu; Marlene J. Egger; Nitesh V. Chawla; Joyce A. Mitchell; Sidney N. Thornton; Bruce E. Bray; Michael W. Varner (J. Biomed. Informatics, 2009)