Cancer Overview. Cancer, also called malignancy, is an abnormal growth of cells. There are more than 100 types of cancer, including breast cancer, skin cancer, lung cancer, colon cancer, prostate cancer, and lymphoma. Symptoms vary depending on the type. Cancer treatment may include chemotherapy, radiation, and/or surgery.
Points of View Reference Center provides a balance of materials from all viewpoints with main essays, leading political magazines from all sides of the political spectrum, newspapers, radio and television news transcripts, primary source documents and reference books.
Frame of Reference : A set of axes, taken as being for practical purposes at rest, that enables the position of a point or body in space to be defined at any instant of time. â¦ Reference Point : A point with respect to which other points, lines etc. are referred, usually in terms of distance or direction, or both.