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Updated: Jun 19, 2026

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A Protocol for Housing Mice in an Enriched Environment
Published on: June 8, 2015
THE INCIDENCE OF CANCER IN TARRED AND SHELTERED MICE
1Laboratories of The Rockefeller Institute for Medical Research.
The Journal of Experimental Medicine
|October 30, 2009
Abstract:
Mice sheltered for long periods from the intercurrent access of living entities out of the environment developed tar cancer with the same frequency as controls exposed to an unusual extent. This happened although the food of the two groups differed profoundly in character.

