[1
]
Department of Hygiene, Epidemiology and Medical Statistics, Medical School, University
of Athens, Athens, Greece.
[2
]
IAS/NIDA Fellow, Hellenic Center for Diseases Prevention and Control, Athens, Greece.
[3
]
Hellenic Centre for Diseases Control and Prevention, Athens, Greece.
[4
]
Organization Against Drugs, Athens, Greece.
[5
]
Medical School, University of Athens, Athens, Greece.
[6
]
Department of Propedeutic Medicine, Medical School, University of Athens, Athens,
Greece.
[7
]
European Centre for Disease Prevention and Control, Stockholm, Sweden.
[8
]
European Monitoring Centre for Drugs and Drug Addiction, Lisbon, Portugal.
[9
]
Consultant Public Health, Utrecht, the Netherlands.
[10
]
World Health Organization Regional Office for Europe, Copenhagen, Denmark.
[11
]
Cornell University, Ithaca, NY, USA.
[12
]
National Development and Research Institutes, New York, USA.
[13
]
Beth Israel Medical Center, New York, USA.