Since the birth of the first " test tube baby" in 1978, more than three million children have been born with the help of reproductivetechnology.
自1978年首例试管婴儿出生以来，已有超过三百万的儿童在这种生殖技术的辅助下出生。
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Whether it's the reproductivetechnology or some by-product of infertility causing the methylation defects is still unknown, but Sapienza plans to tease out the answer in future studies.
是生殖技术抑或不育的副作用造成甲基化缺陷仍是未知之数，但萨皮恩扎计划在未来的研究中整理出答案。
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Second, rapid advances in medicine, including reproductive health, organ transplantation and genetics, raised questions about the purpose and limits of medical technology.