After nearly 100 years of development, treatments that bolster the body's immune system to fight cancer are coming of age – and saving patients' lives. When 71-year-old Maureen Sideris was treated for colon cancer in 2008, she had to go under the knife. Her treatment was successful, but the post-operative recovery process was gruelling. Fourteen years later, Sideris, who lives in New York, was diagnosed with oesophageal cancer – and […]