This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
[{'content': 'A 45-year-old premenopausal woman undergoes a left breast lumpectomy for a 1.5 cm, lymph node positive, hormone sensitive invasive breast cancer. She receives chemotherapy, radiotherapy, and is on tamoxifen. Recommended follow-up after therapy should always include: \nSelect and explain. \nA. Blood tumor markers drawn every 3-6 months after treatment., B. Routine monitoring of liver function tests (LFTs) every 3-6 months after treatment., C. Yearly bone scans., D. Routine clinical examination every 3-6 months for the first 5 years after treatment as well as continued yearly mammography.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Follow-up after breast cancer treatment is very variable. There is no consensus and no follow-up test has shown a survival advantage. Routine 3-6-month clinical examinations and yearly mammography should always be performed. The use of tumor markers such as a CA15-3has not shown any proven significant value and may lead to unnecessary worry.', 'role': 'assistant'}]