therapy – n. the treatment of physical or mental disorders
immune system – noun phrase the body's natural defenses for fighting disease
leukemia – n. a serious disease in which the body forms too many white blood cells
remission – n. a period of time during a serious infection when the patient's health improves
conventional – adj. of a kind that has been around for a long time and is considered to be usual
marrow – n. a soft substance that fills the bones of people and animals
immunotherapy – n. a treatment that uses your body’s own natural defenses to help fight cancer (source: www.cancer.org)