%0 Journal Article %T Purification of human butyrylcholinesterase from frozen Cohn fraction IV-4 by ion exchange and Hupresin affinity chromatography %A Schopfer, Lawrence M. %A Lockridge, Oksana %A David, Emilie %A Hinrichs, Steven H. %J PLoS ONE %V 14 %N 1 %D 2019-01-09 %I Public Library of Science %~ DeepDyve