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