input: [Possible roadblock] Lack of support [What you need to know] 
output: Support can improve your chances of quitting. Look for people who have stopped smoking, or seek out those family and friends who support your goal to quit. Online and phone support can also help: National tobacco quitline: 1-800-QUIT NOW (1-800-784-8669) Stop-smoking programs, such as the American Lung Association's Freedom from Smoking program (www.lungusa.org) or QuitNet (www.quitnet.com) Check with your local hospital or health department for programs to quit smoking. Quitting Smoking: Getting Support