1. The chief donors to sperm banks were medical students.

2. Fertility clinics and sperm banks in the United States often are privately run and are subject to few government restrictions.

3. You went to a sperm bank?

4. They can go to a sperm bank and take a chance on unknown genes.

5. Objective : To build network human sperm bank management information system.

6. Miranda : Honey, let's go to the sperm bank to search for a suitable sperm donor.

7. Carol had told him a thousand kids a year came from sperm banks in the early eighties.

8. A father may choose to be totally unknown to both mother and child by supplying his semen to a sperm bank.

9. In person, however, they have matured about as much as a sperm in a deep frozen sperm bank.

10. But where had his Glover genes come from if his father was in a sperm bank?

11. In most cases, donor sperm is obtained from a sperm bank.

12. Methods By a retrospective survey on data in our sperm bank, we studied influences of total motile spermatozoa number(A, B grade) on AID pregnancy rate.