Cooling a patient was feature in a M.A.S.H. episode in 1979/80. I presume it was moderately well known thing then. https://en.wikipedia.org/wiki/Life_Time_(M*

Cooling a patient was feature in a M.A.S.H. episode in 1979/80. I presume it was moderately well known thing then. https://en.wikipedia.org/wiki/Life_Time_(M*A*S*H) https://en.wikipedia.org/wiki/Life_Time_(M*A*S*H)