CellVolume 91, Issue 7, 26 December 1997, Pages 865-867MinireviewCheckpoint Pathways Come of AgeAuthor links open overlay panelPaul Nurse 1Show moreShareCitehttps://doi.org/10.1016/S0092-8674(00)80476-6Get rights and contentUnder an Elsevier user licenseopen archivePrevious article in issueNext article in issueRecommended articlesCited by (0)Copyright © 1997 Cell Press. All rights reserved.