He was teaching human development and family studies at the University of Missouri, studying college-age students, both at the university and in the community around Columbia, Mo.
当时他正在以密苏里大学和哥伦比亚市周围社区里的在校大学生为研究对象进行研究，他会问他们一些生活和理想方面的问题，诸如“你觉得自己已经进入成年了吗？”
Even before the advent of genetic testing, twin and family studies had pointed to a substantial genetic component in the development of AUDs.
早在基因测试到来前，双生子和家族研究已经指出一项AUDs形成上重大的遗传成分。
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