Combined action of radioactive phosphorus and Soft X Ray on white mice

Abstract

The effects of X-ray and radioactive phosphorus on life span of mice have been studied. It has been found that very minute does of external and internal radiations when they are applied in combination can lead to death of experimental animals by the summered biological damage produced by the radiation applied. But these minute does individually are incapable of producing any detectable biological damage when they are applied separately.