This distribution may reflect differences in the implementation and effectiveness of tobacco control policies

The Central Intelligence Agency's 2013-14 World Factbook lists the following as "developing countries": Afghanistan, Algeria, Angola, Antigua and Barbuda, Argentina, Aruba, The Bahamas, Bahrain, Bangladesh, Barbados, Belize, Benin, Bhutan, Bolivia, Botswana, Brazil, Burkina Faso, Burma, Burundi, Cambodia, Cabo Verde, Cameroon, Central African Republic, Chad, Chile, China, Colombia, Comoros, Democratic Republic of the Congo, Republic of the Congo, Costa Rica, Cote d'Ivoire, Cyprus, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Ethiopia, Fiji, Gabon, The Gambia, Ghana, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, India, Indonesia, Iran, Iraq, Jamaica, Jordan, Kenya, Kiribati, Kuwait, Laos, Lebanon, Lesotho, Liberia, Libya, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Federated States of Micronesia, Morocco, Mozambique, Namibia, Nepal, Netherlands Antilles, Nicaragua, Niger, Nigeria, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Qatar, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, Sao Tome and Principe, Saudi Arabia, Senegal, Seychelles, Sierra Leone, Solomon Islands, Somalia, South Africa, Sri Lanka, Sudan, Suriname, Swaziland, Syria, Tanzania, Thailand, Togo, Trinidad and Tobago, Tunisia, Turkey, UAE, Uganda, Uruguay, Vanuatu, Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

And when you're alone in the dark every day, it doesn't work that way
If you've been thinking about quitting smoking and switching to vaping, you already know the biggest difference between vaping and smoking
We built the safest vapes we could, not the most addictive ones
The message is pretty simple really - smoking in your home leads to really poor air quality and results in concentrations of fine particles, that you cant see, that would cause real concern to us if they were found outside, said lead author Sean Semple, of the Scottish Center for Indoor Air at the University of Aberdeen