1. Tagliamonte A: Heroin Addiction as normal illness. Heroin Addict Relat Clin Probl. 1999, 1 (1): 9-12.
2. Lowinson JH, Ruiz P, Millman RB, Langrod JG: Substance Abuse. A Comprehensive Textbook. 1992, Baltimore , Williams & Wilkins
3. Maremmani I, Perugi G, Pacini M, Akiskal H: Toward a Unitary Perspective on the Bipolar Spectrum and Substance Abuse: Opiate Addiction as a Paradigm. J Affect Disord. 2006, 93: 1-12. 10.1016/j.jad.2006.02.022.
4. Maremmani I, Pacini M, Lubrano S, Lovrecic M, Perugi G: Dual diagnosis heroin addicts. The clinical and therapeutic aspects. Heroin Addict Relat Clin Probl. 2003, 5 (2): 7-98.
5. Maremmani I, Castrogiovanni P: DAH-RS: Drug Addiction History Rating Scale. 1989, Pisa , University Press