Anderson, Jon E.; Hoppe, David M. - In: International Journal of Data Analysis Techniques and … 2 (2010) 2, pp. 103-121
Historical data (1958–1963) on frog malformations in Minnesota, USA, are compared to malformation data collected from 1996 to 1999, at many of the same collection sites, to investigate malformation risk changes between the study periods. We initially consider Mantel-Haenszel and simple...