| smoking |
11,100,000/mo |
$2.68 |
| cystic fibrosis |
6,120,000/mo |
$1.99 |
| lung cancer |
1,000,000/mo |
$3.06 |
| stop smoking |
823,000/mo |
$5.73 |
| tuberculosis |
4,090,000/mo |
$0.60 |
| bronchitis |
1,000,000/mo |
$1.71 |
| effects of smoking |
450,000/mo |
$2.44 |
| emphysema |
301,000/mo |
$2.35 |
| world population map |
8,100/mo |
$1.00 |
| yellow fever virus |
4,400/mo |
$0.67 |
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