fertility clinics造句怎么写

Embryo mix-ups at fertility clinics are extremely rare.

For years, private financing has been used to create embryonic stem cell lines, mostly from discarded embryos from fertility clinics.

In fertility clinics, iPS cells could enable prospective parents to choose embryos for desired traits more easily than they can with conventional assisted-reproduction technologies.

By the way, freezers in fertility clinics all over the country are filled with those surplus embryos, which some consider to be human beings with all the rights and privileges thereof.

The HFEA has ordered UK fertility clinics to take steps to reduce the number of twins and triplets born to IVF couples.

Should researchers use only embryos left over at fertility clinics, which would otherwise be discarded?

And why does destroying blastocysts in the name of finding cures evoke such tigerish protests when most fertility clinics have for years routinely disposed of them as medical waste?