MONOGRAPH / ECETOC ; NO. 21 290,902 IMMUNOTOXICITY Immunotoxicity : hazard identification and risk characterisation September 1994 / ECETOC [European Centre for Ecotoxicology and Toxicology of Chemicals]. - Brussels « ECETOC, 1994. - [2], II, 35 s. ; 30 cm (Monograph / ECETOC, ISSN 0773-6347-21 ; no.21)