अनुबाद गर्नुपर्ने भाषा: अंग्रेजी
Every person has cancer cells in his organism. The cancer cells can not be identified by standard tests, until they reach the number of couple of billions. When doctors say to a patient that he doesn't have malign cells any more, after the therapy, that only means that the cancer cells can not be identified by test, because their number is reduced to the level which can not be registered.