 Though the early prehistoric Vietnamese and Malaysians both resembled the Australo-Melanesian samples the most, the Mán Bạc people had a greater resemblance to the Đông Sơn samples dating back to the Iron Age.Analyzing cranial and dental remains, Matsumura concluded based on chronological differences that the Mán Bạc people were immigrants affiliated with peoples near the Yangtze River region in Southern China.Molecular anthropologists have used classical genetic markers and mtDNA to analyze the similarities between early Chinese and Southeast Asians.