Conclusion Nasopharyngeal carcinoma is probably relative to heredity. 結論鼻咽癌可能與遺傳因素有關(guān)。
Conclusions Incidence of children nasopharyngeal carcinoma was related to total cases of this tumor in the same year. 結論兒童鼻咽癌的發(fā)病率與該地區鼻咽癌的總發(fā)病人數有關(guān)。