Familial susceptibility to cancer.
D000328:Adult; D002648:Child; D004781:Environmental Exposure; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology; D009369:Neoplasms / Q000209:etiology / Q000235:genetics*; D010375:Pedigree; D012306:Risk; D012907:Smoking