Compléter Fill in the blanksVersion en ligne Fill in the blanks the following definition related to oncology par Ángeles Valadés Talavera 1 are ovarian symptoms apparition several million are Genetic changes doctor three changes provides field nausea surgical prostatic environment symptoms radiation lifestyle person signs cancer study treats loss world pelvic Oncology is the of cancer . An oncologist is a who cancer and medical care for a diagnosed with cancer . The of oncology has major areas : medical , , and . There are types of cancer : , , gastrointestinal , lung , and blood cancer . defects , , and habits are highly connected to the of cancer . Every day around 2 people diagnosed with in the . Some of the of cancer : stomach pain or , unexplained weight , skin , chronic headache , breast , bloating , and abnormal periods or pain amongst other .