Cause and prevention of lip cancer.
D000368:Aged; D002170:Canada; D006801:Humans; D008048:Lip Neoplasms / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control*; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases; D013472:Sunlight; D013473:Sunscreening Agents / Q000627:therapeutic use; D014466:Ultraviolet Rays / Q000009:adverse effects
D013473:Sunscreening Agents