Compléter Fill in the blanksVersion en ligne Fill in the blanks the following definition related to oncology par Ángeles Valadés Talavera 1 several field changes symptoms symptoms cancer are three Genetic doctor ovarian million treats environment changes radiation world loss study lifestyle are apparition signs surgical pelvic nausea person provides prostatic 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 .