"These are very positive steps and demonstrate that FDA recognizes the problem of youth use is very serious," said Matthew Myers, of the Campaign for Tobacco-Free Kids
Males' responses to the gangrene foot picture were more than twice as strong as those of females

Patil Vidyapeeth, Pune (Deemed to be University), Pune, India Siddharthan Selvaraj Department of Clinical Pharmacy, University of Gondar, Gondar, Ethiopia Ashenafi Kibret Sendekie School of Pharmacy, Curtin University, Perth, Western Australia, Australia Ashenafi Kibret Sendekie Department of Biomedical Sciences, Gulf Medical University, Ajman, United Arab Emirates Pallav Sengupta Fourth Department of General Surgery, Emergency University Hospital Bucharest, Bucharest, Romania Dragos Serban Department of Medicine, Swami Vivekanand Subharti University, Meerut, India Yashendra Sethi Division of Population Medicine, Cardiff University, Cardiff, UK Abubakar Shaaban Department of Neurology, Tehran University of Medical Sciences, Tehran, Iran Mahan Shafie Dongguan Key Laboratory of Computer-Aided Drug Design, Guangdong Medical University, Dongguan, China Muhammad Shahab State Key Laboratories of Chemical Resources Engineering, Beijing University Of Chemical Technology, Beijing, China Muhammad Shahab School of Health Sciences, Universiti Sains Malaysia (University of Science Malaysia), Kota Bharu, Malaysia Shazlin Shaharudin Research Centre for Health Sciences (RCHS), The University of Lahore, Lahore, Pakistan Samiah Shahid Center for Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates Moyad Jamal Shahwan, Anas Shamsi & Samer H

Data table for Chart 3 People typically begin smoking during their teenage years Note 4 , so the percentage who have not started smoking by age 20 is an indicator of future smoking rates