Nihon University on Wednesday owned up to nepotism in their admissions process, adding to the growing number of medical schools known to have been treating their applicants unfairly.

"We gave preferences to some applicants whose parents graduated from our school, in the belief they were more likely to enroll in our school and to contribute to the continuity of the medical institutions affiliated to the university," said Tadatoshi Takayama, head of the university's school of medicine, before reporters at a news conference held Wednesday in Tokyo.

Scholars involved in the school's admission process revealed that in the past two years they gave preference to 10 applicants whose parents had graduated from the same medical school, ignoring scores from the entrance tests.