Oncology is a branch of medicine that deals with the prevention, diagnosis, and treatment of cancer. A medical professional who practices oncology is an oncologist. The name's etymological origin is the Greek word ὄγκος (óngkos), meaning 1. "burden, volume, mass" and 2. "barb", and the Greek word λόγος (logos), meaning "study". The neoclassical term oncology was used from 1618, initially in neo-Greek, in cognizance of Galen's work on abnormal tumors, De tumoribus præter naturam.Read more on Wikipedia
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