Natural selection shaped regional mtDNA variation in humans.
Mishmar D, Ruiz-Pesini E, Golik P, Macaulay V, Clark AG, Hosseini S, Brandon M, Easley K, Chen E, Brown MD, Sukernik RI, Olckers A, Wallace DC.. Natural selection shaped regional mtDNA variation in humans.. Proc Natl Acad Sci U S A. . 2003, Vol. 100(1)/2003, p. 171-2003.