mtDNA variation in Vietnamese pigs, with particular emphasis on the genetic relationship between wild boars from Vietnam and the Ryukyu Islands Ishiguro, Naotaka and Sasaki, Motoki and Iwasa, Mitsuhiro and Shigehara, Nobuo and Hongo, Hitomi and Anezaki, Tomoko and Long, Vu The and Lan, Dinh Thi Bich and Long, Phung Thang, Mammal Study, 33, 51-58 (2008), DOI:http://dx.doi.org/10.3106/1348-6160(2008)33[51:MVIVPW]2.0.CO;2