1993
DOI: 10.3950/jibiinkoka.96.1501
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Multiple Primary Cancers in Patients With Head and Neck Cancer and History of Tobacco Smoking and Drinking

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Cited by 3 publications
(2 citation statements)
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“…Recently, multiple primary malignant tumors in the same patient frequently have been found because of the advancing age of patients and improvements in the diagnosis of malignant tumors. In the reports of the 1980s, the incidence of multiple primary malignant tumors in patients with cancer of the head and neck had been about 5%, 1,2 whereas it was Ն10% in the reports after 1990. 3,4 Apparently, this tendency is increasing.…”
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confidence: 99%
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“…Recently, multiple primary malignant tumors in the same patient frequently have been found because of the advancing age of patients and improvements in the diagnosis of malignant tumors. In the reports of the 1980s, the incidence of multiple primary malignant tumors in patients with cancer of the head and neck had been about 5%, 1,2 whereas it was Ն10% in the reports after 1990. 3,4 Apparently, this tendency is increasing.…”
mentioning
confidence: 99%
“…In the reports of the 1980s, the incidence of multiple primary malignant tumors in patients with cancer of the head and neck had been about 5%, 1,2 whereas it was Ն10% in the reports after 1990. 3,4 Apparently, this tendency is increasing. Multiple primary malignant tumors are traditionally designated as synchronous tumors or metachronous tumors after a period of 6 months.…”
mentioning
confidence: 99%