而每一位从事“诱导多能性”细胞研究的科学家都坚持认为，源自体外受精疗法多余胚胎的传统胚胎干细胞研究，必须继续。
However every scientist working on ips cells insists research on conventional embryonic stem cells derived from surplus embryos after in vitro fertilisation treatment must continue.
射线聚焦来自体外称作外射线术的放射源。
Radiation focused from a source outside the body is called external beam radiation.
目的观察急性心肌梗死（AMI）患者应用G-CSF行自体外周血干细胞动员的效率与安全性。
Objective Observed the mobilization effects, the safety and feasibility of autologous circulating blood stem cell by G-CSF in acute myocardial infarction (AMI).
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