Fertility Clinic Says Failure May Have Damaged Thousands Of Eggs And Embryos
The problem hit a San Francisco clinic on March 4 — the same day that a similar cryogenic tank failure was reported in Cleveland.
cryogenics
To Protect Fruit Crops, Scientists Are Putting Them Into A Deep Freeze
In an effort to save irreplaceable varieties from disease and other threats, plant cuttings are being "cryopreserved" — plunged into liquid nitrogen for later revival.