Multiple primary neoplasms in identical twins.
D002294:Carcinoma, Squamous Cell / Q000235:genetics*; D004200:Diseases in Twins; D004379:Duodenal Neoplasms / Q000473:pathology; D006801:Humans; D007414:Intestinal Neoplasms / Q000473:pathology; D007889:Leiomyoma / Q000235:genetics*; D008048:Lip Neoplasms / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000235:genetics* / Q000473:pathology; D009669:Nose Neoplasms / Q000473:pathology; D011127:Polyps / Q000235:genetics*; D013274:Stomach Neoplasms / Q000473:pathology