I used to cut FS of (+) materials and stored UNFIXED in a -80ºC freezer. They were useful for several years.
  René J.

Greg Dobbin  wrote:
  Hello All,
I am interested in hearing what other labs are doing with regard to having
good positive controls slides on hand. Are frozen sections cut from normal
breast tissue and stored? How? Fixed or unfixed? Room temp or freezer?
Thanks in advance!

-- 

Greg Dobbin

Chief Technologist Histology
Queen Elizabeth Hospital
Charlottetown, PE
Canada
Ph (902) 894-2337
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