1. Food and Drug Administration. In General Principles for Evaluating the Safety of Compounds in Food-Producing Animals. Food and Drug Administration: Rockville, MD, 1986.
2. Harmful Substances in Food Regulations of the Public Health and Municipal Services Ordinance (Cap. 132), the Hong Kong Special Administrative Region.
3. Public Health (Animals and Birds) (Chemical Residues) Regulation of the Public Health (Animals and Birds) Ordinance (Cap. 139), the Hong Kong Special Administrative Region.
4. Development of Multiclass Methods for Drug Residues in Eggs: Silica SPE Cleanup and LC-MS/MS Analysis of Ionophore and Macrolide Residues