Volunteers also completed a questionnaire concerning their typical intake of several classifications of fish (e. g. catfish, salmon, shrimp and clams), eggs and alcoholic beverages.

• 志愿者要回答一系列有关他们饮食的问题,如所食鱼如鲇鱼、大麻哈鱼、虾和蛤,蛋,酒精饮料的种类。