Tiivistelmäosa. - National Veterinary and Food Research Institute (EELA), Helsinki, Finland, and Department of Food and Environmental Hygiene, Faculty of Veterinary Medicine, University of Helsinki
Tiivistelmä ja 5 erip. - Nimiösivulla myös: National Veterinary and Food Research Institute (EELA), Helsinki, Finland, and Department of Food and Environmental Hygiene, Faculty of Veterinary Medicine, University of Helsinki