| http://www.w3.org/ns/prov#value | - At enrolment, a random sample of 160,725 people who were free of cancer, born in Denmark and aged between 50 and 64 at the time of invitation were recruited to this study.Of these, 57,053 people accepted the invitation and completed self-administered questionnaires about lifestyle habits, including smoking, coffee and alcohol intake, diet (by a food frequency questionnaire), health status and othe
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