translation.en: Adult stem cells are throughout our body, including the blood-forming stem cells in our bone marrow, which we've been using as a form of stem-cell therapy for over 40 years.
translation.zh: 成人干细胞却遍布全身， 包括骨髓里的造血干细胞。 它一直是用来干细胞治疗的方法 有40多年了。