Mantel & Haenszel
This is one of a great original paper by Mantel and Haenszel for epidemiologists, biostatisticians, and public health professionals. <p align="left">STATISTICAL ASPECTS OF THE ANALYSIS OF DATA FROM RETROSPECTIVE STUDIES OF DISEASE</p><p align="left">By Mantel & Haenszel</p><p align="left">http://gotoknow.org/file/thiraw/Stat+aspects+for+retrospective+studies+of+diseases.pdf</p><p align="left"> </p>
