1Servizio di Epidemiologia, Centro di Riferimento Oncologico, via Pedemontana Occ., Aviano, 33081, Italy
2Cattedra di Igiene, Dipartimento di Patologia e Medicina Sperimentale e Clinica, University of Udine, via Colugna, 40, Udine, 33100, Italy
3Department of Epidemiology and International Health, School of Public Health, University of Alabama at Birmingham, 1665 University Blvd. #230J, Birmingham, AL, 35294-0022, USA
4Istituto di Ricerche Farmacologiche “Mario Negri”, via Eritrea, 62, Milan, 20157, Italy
5Istituto di Statistica Medica e Biometria, University of Milan, via Venezian, 1, Milan, 20133, Italy
6Caja Costarricense de Seguro Social, San Jose, Costa Rica
7International Agency for Research on Cancer, 150 cours Albert-Thomas, Lyon Cedex 08, 69732, France
Copyright © 2000 Cancer Research Campaign
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