Polymorphisms in CYP1A1 and smoking: no association with breast cancer risk.
Basham VM, Pharoah PD, Healey CS, Luben RN, Day NE, Easton DF, Ponder BA, and Dunning AM
Carcinogenesis. Nov 2001
(DOI : 10.1093/carcin/22.11.1797)