uspstf tobacco screening Guidelines you NEED to know for USMLE ๐ ๐ซ Lung: 50โ80 + โฅ20 pack-year smoker โ yearly low-dose CT ๐ Breast: 40โ74 โ mammography q2 years ๐งฌ Colorectal: start at 45 Persistent race- and sex-based disparities
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