Genetic affinities of central China populations.

1Key Laboratory of Genetics and Birth Health of Hunan Province, Family Planning Institute of Hunan Province, Changsha, China 2State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan Province, China 3Department of PLA 65553 Medical Team, Haicheng, Liaoning, China 4Department of Medical Laboratory, The 210 Hospital of PLA, Dalian, China