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A group of 20 ex-Hong Kong prisoners of war and a control group of 20 of their brothers who also had seen service in World War II, were investigated psychiatrically, neurologically and psychologically. The results of this investigation are presented and discussed. It would appear that the accumulation of severe stresses endured over a period of three-and-a-half years led to significant impairment in various areas of nervous and psychological functioning which is still easily detectable twenty years after liberation.
Kral et al. (1967) studied this question.