Variable Selection with Multiply-Imputed Datasets: Choosing Between Stacked and Grouped Methods. - Jiacong Du; Jonathan Boss; Peisong Han; Lauren J. Beesley; Michael Kleinsasser; Stephen A. Goutman; Stuart A. Batterman; Eva L. Feldman; Bhramar Mukherjee (J. Comput. Graph. Stat., 2022)