That's TPF Induction chemo, also called neoadjunct treatment, your father is getting. I had the same. If anything will knock out cancer that will. I only did 5 days, and it killed all my cancer in the tonsil, 2 lymoh nodes. Unfortionately thay say Induction chemo, does not last even though it kills the cancer or shrinks it, but will come back in less than a year a medical journal said. Mine did at 8 months, due to not having the real curative treatmant, which is radiation or surgery. I don't know about the bronchial nodes, and a good question to ask your doctor. There may be other procedures that can be used on the bronchial lymph node later on like cyber knife, introperative radiation therapy, even IMRT. Best wishes.