الحلقة 26: يستحضر بلاك جاك عملية جراحية سابقة لطفل يعاني من شلل في اليدين كان يستخدم المعداد.

26

While hearing Pinoko talk about the abacus, Black Jack remembers when the teacher and father of Eiji, a boy, came to see him a long time before. Eiji dreamed of being an abacus champion, but he couldn't move his hands. Black Jack operated to fix them, but when his hands cramp up in a competition, reverts to using the abacus with his tongue. (Source: Wikipedia)