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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The common method of closing a surgical incision is simply to stitch the patient up. There are some issues, though. Good stitching can be challenging,
发表于:2019-01-08 / 阅读(95) / 评论(0)
Scientific American(四)月
Scientific American(四)月