Gene Editing Testis tissue frozen for more than two decades can produce viable sperm after reimplantation Posted on May 11, 2022 by Editorial Staff A new study demonstrates that rat testis tissue frozen for over 20 years can be successfully transplanted into infertile mice to regenerate and produce sperm. Share on FacebookTweetFollow us Editorial Staff Opinion: The danger of letting primary care be a rescue path for burned-out specialists Exploring routine saliva testing for SARS-CoV-2 in children