title: Editorial overview: Differentiation and disease.
authors.affiliation: Memorial Sloan Kettering Cancer Center, New York, NY, USA. Electronic address: armstros@mskcc.org.
authors.forename: Scott A
authors.initials: SA
authors.lastname: Armstrong
authors.affiliation: University of California at Berkeley, Berkeley, CA, USA; Howard Hughes Medical Institute, Berkeley, CA, USA. Electronic address: mrape@berkeley.edu.
authors.forename: Michael
authors.initials: M
authors.lastname: Rape