 በዚህም ምክንያት መቻቻል ሊፈጠር ይችላል, ይህም ለረጅም ጊዜ መድሃኒት ለተወሰዱ ታካሚዎች መሻሻል ታሳቢ ሊሆንም ይችላል.
It is possible that additional benefit from treatment would have been demonstrable in patients who have been sick for a long time.