 Cruciani et al.in the large 2010 study found 3 cases amongst 1173 Italians, 1 out of 328 West Asians and 1 out of 156 East Asians.Varzari found 3 cases in the Ukraine, in a study of 322 people from the Dniester–Carpathian Mountains region, who were P25 positive, but M269 negative.