IKP GmbH, Mannheim, Germany
IKP GmbH, Mannheim, Germany
IKP GmbH, Mannheim, Germany
IKP, Mannheim, Germany
Gentofte University Hospital, Hellerup, Denmark
University of Heidelberg, Mannheim, Germany
University Hospital of Tuebingen, Tuebingen, Germany
Smoking Cessation Clinic, Kutna Hora, Czech Republic
Institute of Hygiene and Epidemiology, Prague, Czech Republic
Manipal Goa Hospital, Goa, India
Dr. Maxwell´s Clinic, San Miguel de Allende, Guanuajuato, Mexico
Servicios Medicos de la Bahia, Puerto Vallarta, Jalisco, Mexico
Department of Primary Care and General Practice, University of Birmingham, Birmingham, United Kingdom
Tobacco Dependence Research Centre at Barts and The London Queen Mary's School of Medicine and Dentistry, London, United Kingdom
People's Hospital affiliated to Beijing University, Beijing, Beijing, China
No. 1 Hospital affiliated to Zhongshan University, Guangzhou, Guangdong, China
Chang Zheng Hospital, Shanghai, Shanghai, China
JJCPPW Investigational Site, Wilrijk, Antwerp, Belgium