1. Associate Professor in Residence; School of Nursing, University of California San Francisco; San Francisco CA USA
2. Professor and Interim Dean, Lulu Wolf-Hassenplug Endowed Chair in Nursing; School of Nursing, University of California, Los Angeles; Los Angeles CA USA
3. Project Director, School of Nursing; University of California, Los Angeles; Los Angeles CA USA
4. Statistician, David Geffin School of Medicine; University of California, Los Angeles; Los Angeles CA USA
5. Associate Professor and director, Centre for Tobacco-Dependent of the 3rd Medical Department-Department of Endocrinology and Metabolism; First Faculty of Medicine of Charles University and General University Hospital in Prague, and Institute of Hygiene and Epidemiology; Prague Czech Republic
6. First Faculty of Medicine of Charles University in Prague and General University Hospital; Society for Treatment of Tobacco Dependent; Prague Czech Republic
7. Professor and Plenipotentiary of Director of the Cancer Center & Institute of Oncology in Cancer Epidemiology and Prevention; Head of WHO Collaborating Centre; the Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology; Warsaw Poland
8. Deputy Head of WHO Collaborating Centre; The Maria Sklodowska-Curie Memorial Cancer Center & Institute of Oncology; Warsaw Poland