1. Psychotropic drugs: organization and role of the laboratory;Ferrara,1982
2. Investigation on drug use in the community;Ferrara,1985
3. Performance of clinical toxicology laboratories;Dijkhuis;Lancet,1982
4. Drug testing in the military. Technical and legal problems;Irving;Clin. Chem.,1988
5. Quality Control of Drug Assays in Therapy and Toxicology, Using Calf Serum and Matrix;Dijkhuis,1979