Teacher:  In this task, you are given a sentence in the Bulgarian language. Your task is to convert it to Greek language.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Възможно е да имат и епизоди на депресия.
Solution: Ενδέχεται επίσης να εµφανίσουν επεισόδια κατάθλιψης.
Reason: The translate is accurate from Bulgarian to Greek

Now, solve this instance: Пациенти в напреднала възраст: не е установена ефективността на ABILIFY за лечение на шизофрения и биполярно афективно разстройство при пациенти на и над 65 годишна възраст.
Student:
Hλικιωμένοι: η αποτελεσματικότητα του ABILIFY για τη θεραπεία της σχιζοφρένειας και της Διπολικής Διαταραχής τύπου Ι σε ασθενείς 65 ετών ή μεγαλύτερους δεν έχει αποδειχθεί.