cases of the sebaceous gland carcinoma at ocular portio were studied in a case-control study at our EENT hospital during the period 978-99. 0 cases of non-sebaceous gland carcinoma and non-malignant tumors were randomly selected as the control.
cases of the sebaceous gland carcinoma at ocular portio were studied in a case-control study at our EENT hospital during the period 978-99. 0 cases of non-sebaceous gland carcinoma and non-malignant tumors were randomly selected as the control.
用病例对照方法,对本院97 ～99年期间眼部例皮脂腺癌进行病因学研究随机选用0例非皮脂腺癌、非恶性肿瘤病人为对照,并按年龄、性别、诊断时间和居住地区与病例组相配对。