<unk>  (American English) or<unk>  (British English) is the branch of biology (physiology), pathology, clinical laboratory, internal medicine, and pediatrics that is concerned with the study of blood, the blood-forming organs, and blood diseases.<unk>  includes the study of etiology, diagnosis, treatment, prognosis, and prevention of blood diseases.  The lab work that goes into the study of blood is performed by a Medical Technologist.
Blood diseases affect the production of blood and its components, such as blood cells,<unk> oglobin, blood proteins, the mechanism of coagulation, etc.
Hematology
Obstetrics
Proctology
Oncology
Hepatology
Neuroscience
Otology
Pulmonology