But then when you do bigger studies, the average risk is lower. (newscientist.com)
Several very big studies have been carried out comparing the mortality and longevity of different breeds of dogs, including cross breeds. (thehappypuppysite.com)
As yet, we have no idea when the next big study will start, but our best guess would be late 2018 or early 2019. (en.hdbuzz.net)