Modulation of the G2 Cell Cycle Checkpoint by Sesquiterpene Lactones Psilostachyins A and C Isolated from the Common Ragweed Ambrosia artemisiifolia - Sturgeon, Christopher M; Craig, Kyle; Brown, Colleen; Rundle, Natalie T; Andersen, Raymond J; Roberge, Michel (Planta Medica, 2005)