http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Aussie scientist Barry Marshall won the Nobel Prize for discovering the bacterial cause of stomach ulcers. But he also proposed that he could tell where you were born and where your family comes from by the DNA of your helicobacter. Given that half the world's population carry helicobacter, it could be a useful way of researching human migration.
Title from resource description page (viewed July 10, 2014).
Catalyst ; Series 12, Episode 15, Part 4