pathologist
The most common type of cancer doctor is called an Oncologist. There are three different types of Oncologist. Medical, which deals with one's general care. Radiation, which deals with one's care during radiation therapy and surgical, which deals with one's biopsy and surgery procedures.
The science of the causes and effects of diseases, especially the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic purposes.
a psychiatrist
The jobs that deals with science are scientist biologist zoologist doctor
Oncologist.
Reumatologist
Urologist
cardiologist
There are many deals where you can receive legitimate free samples. You can get these from the television or the internet, but you may have to pay a shipping and handling price.
gerontologist
Proctologist
Psychologist/psychiatrist.