One thing I don't understand about this AI procedure is
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送交者: 蓝隼 于 2011-09-06, 10:50:42:
回答: HHS's winner 由 短江学者 于 2011-09-06, 10:13:34:
why the clinics and/or sperm banks keep the sperm from the same donor after having used it for a couple of times (say, 4 or 5 times)? Those "used" sperm samples should be distroyed and discarded.
Maybe we need a national network to track down every sperm donor to make sure he does not donate sperm repeatly at different medical facilities.
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