Question: Which risk is associated with the use of complementary and alternative medicine (CAM) by patients with cancer? Select all that apply. One, some, or all responses may be correct. CAM has not been proven to be effective in cancer. Some restrictive diets cause nutrient deficiencies. Patients often do not disclose information about the use of CAM. Results of clinical experimentation have not proven that CAM is safe. Dietary supplements can have dangerous interactions with chemotherapy drugs.