Seven of the 23 acted as a control group, and received no intervention from Dr Bolli after the surgery.

23人中7人为实验对照，术后未接受Bolli博士实验操作。

The good news for the field of stem-cell therapy comes from a paper published in this week's Lancet by Roberto Bolli of the University of Louisville and his colleagues.

干细胞研究的好消息是本周路易斯维尔大学的Roberto Bolli与其同事在《柳叶刀》（Lancet）杂志发表一篇文章。

About four months after each patient's original operation, when their hearts had stabilised, Dr Bolli used a catheter to deliver 1m of the newly bred stem cells to their damaged heart muscle.

首次手术大约四个月后，当心脏功能稳定时，Bolli博士用一根导管将1百万个新生干细胞导入受损心肌中。