68年前の赤ちゃん取り違え、生みの親は確認できず　都が調査報告書 [東京都]：朝日新聞

This page reports on a case of infant mix-up that occurred 68 years ago at a Tokyo metropolitan hospital. A man named Satoshi Ezura, now 67, was switched with another newborn at Sumida Maternity Hospital. The Tokyo metropolitan government released an investigation report on March 30, finding that despite DNA testing of people born at the facility around the same time, the biological parents could not be identified. Ezura discovered at age 46 that he had no blood relation to his adoptive parents. A Tokyo court ruled last year that the hospital was responsible for the mix-up, ordering further investigation. Ezura continues seeking his biological parents.