In the United Kingdom, there are defined training pathways leading to professional registration as either a Clinical Scientist, or as a Biomedical Scientist. The role descriptions for these healthcare scientists are very different, where clinical scientists generally undertake non-routine research and development, as well as improving and providing clinical service using scientific expertise. Biomedical Scientists in the United Kingdom are similar to the role of MLT and MT/CLS described above, and have similar regulatory requirements for professional regulation. Clinical Scientists in the United Kingdom may struggle with a lack of professional recognition. This is in part due to the myriad job titles used to describe them including Clinical Physiologists, Medical Physicists, and Clinical Biochemists, which generally mean the public and other healthcare workers assume Clinical Scientists to be medically qualified doctors, due to the sometimes complex nature of the role.