KNUDSEN IB /red./ 542,943 MODIFIERS Modifiers of carcinogenesis : Proceedings from the Symposium in Copenhagen, September 22-23, 1983 / ed. lb Knudsen, Holger Pedersen, Elvind B/Thorling ; the Danish Ministry of Environmental Protection.- /Copenhagen : Munksgaard/ The Danish Cancer Society, /1984/. -204 s. : il., wykr.; 25 cm Acta Pharmacologica et Toxicologica ; suppl. 2 ISBN 87-16-06279-5 ISBN 0065-1508