Tests taken byUKdoctors show enormous variation in performance depending on which medical school they attended, according to new research.

Medical graduates from Oxbridge andNewcastleuniversities performed better than average while those fromLiverpool,Dundee,BelfastandAberdeenuniversities did least well in an exam for aspiring specialist physicians in theUK.

The General Medical Council, which is responsible for setting standards, has mooted introducing a national medical licensing exam, such as exists in theUS.