TITLE:  Ex-smokers and the multistage model for lung cancer 
AUTHOR:  D.A. Freedman and W. Navidi 
DATE: December 1987
PUB:  Epidemiology, Jan. 1990, Vol. 1 No. 1, 21-29 
URL: 
TEXT: 135. FREEDMAN, D.A. and NAVIDI, W. (December 1987). Ex-smokers and the multistage model for lung cancer. Epidemiology, Jan. 1990, Vol. 1 No. 1, 21-29
ABSTRACT: