Epidemiologic investigations. Care in conduct, care in analysis, and care in reporting.
D000328:Adult; D000367:Age Factors; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012107:Research Design; D012907:Smoking; D013223:Statistics as Topic