Morphogens: how big is the big picture? P A Lawrence Nature Cell Biology 3, E151–E154 (2001) Full Text|PDF
Straight or split: signals to transcription M van den Heuvel Nature Cell Biology 3, E155–E156 (2001) Full Text|PDF
Presenilins and the intramembrane proteolysis of proteins: facts and fiction B D Strooper & W Annaert Nature Cell Biology 3, E221–E225 (2001) Full Text|PDF
