1. Chronic toxicity/carcinogenicity studies of sulphamethazine in Fischer 344/N rats: Two-generation exposure
2. Code of Federal Regulations 21 CFR Parts 510 and 556, US Government Printing Office, Washington, DC, 1987.
3. Federal Register, 53FR 9492, March 23, NCTR (1988) Technical Report for Experiment No. 418, NCTR, March 1988.
4. Establishment of Maximum Residue Levels of Veterinary Medical Products in foodstuffs of animal origin, Council Regulation (EEC) No. 2377/90, Off. J. Eur. Commun. L224/1 (1990).
5. Council Directive 96/23/EC of 23rd May 1996, Off. J. Eur. Commun. L125 (1996) 10.