english: It has to be tiny enough to get through the bloodstream, it's got to be small enough to penetrate the tumor tissue, and it's got to be tiny enough to be taken up inside the cancer cell.
non_english: Mora da bude dovoljno malo da prođe kroz krvotok, dovoljno malo da prodre u tkivo tumora i mora da bude dovoljno malo da ga ćelija raka može preuzeti u sebe.