WU Kunher, LINDSTED Kristian D., LEE Jerry W. (2005). “Blood type and the five factors of personality in Asia”. Personality and Individual Differences38 (4): 797-808. doi:10.1016/j.paid.2004.06.004. - 台湾の論文。この調査では、176名の学生を対象として血液検査を実施し、血液型と性格の5因子モデルの外向性の関連性を否定する結果が出た。
Lo, Min-Tzu; Hinds, David; Tung, Joyce (2017). “Genome-wide analyses for personality traits identify six genomic loci and show correlations with psychiatric disorders”. Nature Genetics49 (1| pages=152-156| pmid=27918536| pmc=5278898). doi:10.1038/ng.3736.
Masayuki Kanazawa. (2021). “Linkage between ABO Blood Type and Occupation: Evidence from Japanese Politicians and Athletes”. International Journal of Social Science Studies9 (5): 104-111. doi:10.11114/ijsss.v9i5.5282.