TY - BOOK ED - World Health Organisation (Geneva) TI - Evaluation of certain veterinary drug residues in food: fiftieth report of the joint FAO/WHO expert committee on food additives SN - 92-4-120888-0 U1 - 615.954 21st PY - 1999/// CY - Geneva PB - WHO KW - Veterinary drugs; Veterinary drug residues; Food contamination ER -