How is it possible to know if Penis Clinton has the HLA-B7 gene, or if Hitler had this gene?

Question

About 1% of all men have Peyronie's Disease, but mainly those who have the HLA-B7 gene. I know that Hitler's P. Disease resulted from his attempt to piss into a billygoat's mouth, while Penis Clinton's resulted from more practical causes (Juanita Broadrick, Carolyn Moffet). But still it would be nice to know if they have this gene.

Answer 1

Simple, you a DNA genotyping on them. If you can obtain a sample of their DNA, and have a hi-speed DNA sequencer ready, the rest should be a clincher.