I am in nursing school for basic RN. Before I got into the program i was told that you can go to school to be n RN and then from there you specialize in the hospital. Example: Working with chemo or being a Pediatric Oncologist Nurse. My question is, do you have to go onto a masters program for a title like Pediatric Oncologist or is it true that you just specialize working in that unit in the hospital?