STATISTICAL ASPECTS OF THE ANALYSIS OF DATA FROM RETROSPECTIVE STUDIES OF DISEASE

This is one of a great original paper by Mantel and Haenszel for epidemiologists, biostatisticians, and public health professionals. 

STATISTICAL ASPECTS OF THE ANALYSIS OF DATA FROM RETROSPECTIVE STUDIES OF DISEASE

By Mantel & Haenszel

http://gotoknow.org/file/thiraw/Stat+aspects+for+retrospective+studies+of+diseases.pdf