多项选择题
Which choices are the characteristics of tumor markers？
A、It usually rose in the presence of early stage disease, which allowing early diagnosis and treatment.
B、It is specific, being raised only in the presence of the malignancy, not in any benign conditions.
C、It may be produced in proportion to the bulk of disease.
D、It should be the gold standard for cancer diagnosis.
E、It is cheap and widely used
微信扫一扫关注公众号后联系客服
微信扫码免费搜题
