Sources:
https://psa.gov.ph/article/173-million-filipino-adults-are-current-tobacco-smokers
http://www.webmd.com/smoking-cessation/understanding-nicotine-withdrawal-symptoms
http://www.stateoftobaccocontrol.org/listicles/10-worst-diseases-smoking-causes.html?referrer=https://www.google.com.ph/