Y chromosome diversity, human expansion, drift, and cultural evolution.
Proc Natl Acad Sci U S A. 2009 Dec 1;106(48):20174-9. doi: 10.1073/pnas.0910803106. Epub 2009 Nov 17. Proc Natl Acad Sci U S A. 2009. PMID: 19920170 Free PMC article.