Having 4 years of experience studying and working in the field of oncology. Doctor Ha had already graduated from Hanoi Medical University in 2018, continuing to study under the residency program specializing in oncology and finishing master degree in Oncology in Hanoi Medical University. Areas of expertise include chemotherapy, targeted therapy, immunotherapy in many cancers especially in breast cancer, lung cancer, and digestive cancer. Treatment and management of complications caused by chemotherapy, immunotherapy, etc. Treatment and palliative care of cancer patients, including pain management, nutrition, and infections common in cancer, are also available as other serious complications in cancer.