Defining cancer survivors, their needs, and perspectives on survivorship health care in the USA.

More people are living after a diagnosis of cancer than ever before and now account for around 5% of the US population. The specialty of cancer survivorship has been developing and growing since the mid-1980s, but the term survivor is open to debate by people living with cancer and those caring for them. Regardless of the term used, many ongoing physical, psychological, and social needs affect quality of life for people who are living with cancer and those who have survived the disease.