1. Pretlow,T.P., Barrow,B.J., Ashton,W.S., O'Riordan,M.A., Pretlow,T.G., Jurcisek,J.A. and Stellato,T.A. ( 1991 ) Aberrant crypts: putative preneoplastic foci in human colonic mucosa. Cancer Res. , 51 , 1564 –1567.
2. Pretlow,T.P. and Pretlow,T.G. ( 2005 ) Mutant KRAS in aberrant crypt foci (ACF): initiation of colorectal cancer?. Biochim. Biophys. Acta , 1756 , 83 –96.
3. Siu,I.M., Pretlow,T.G., Amini,S.B. and Pretlow,T.P. ( 1997 ) Identification of dysplasia in human colonic aberrant crypt foci. Am. J. Pathol. , 150 , 1805 –1813.
4. Vogelstein,B., Fearon,E.R., Hamilton,S.R., Kern,S.E., Preisinger,A.C., Leppert,M., Nakamura,Y., White,R., Smits,A.M. and Bos,J.L. ( 1988 ) Genetic alterations during colorectal-tumor development. N. Engl. J. Med. , 319 , 525 –532.
5. Lengauer,C., Kinzler,K.W. and Vogelstein,B. ( 1997 ) Genetic instability in colorectal cancers. Nature , 386 , 623 –627.