Plastering ads around saying things like "Store one person's blood and the whole family benefits" or "Save Grandma, have a child" are wrong to begin with; even with a sibling, the chance of a genetic mismatch would still be very high, and this is the major reason he wishes to promote the storage of autologous cord blood.
張南驥說，坊間廣告標榜「一人儲存，全家受惠」或是「生個金孫救阿嬤」之類的說法根本是錯誤的，即便是兄弟姊妹，基因型不吻合的機率仍舊很高，這也就是他為什麼要推動自體臍帶血儲存的最大原因。