【简答题】Cancer cells need a large supply of the vitamin to maitain their rapid growth, so they have many folic acid receptors on their membranes. Breast, kidney, lung, and several other types of cancer cells ...
【单选题】Breast cancer cells can spread directly to the cranial cavity and brain via the vertebral venous plexus. Through which route can they reach this plexus?
【单选题】In a clinical trial, a chemotherapeutic agent is given to patients with breast cancer metastases. Samples of the cancer cells are obtained and assessed for the presence of death of tumor cells by apop...