Click to increase image sizeClick to decrease image size Notes† This paper was read before the Research Committee of the Adolescent Treatment Center, Institute of the Pennsylvania Hospital.The authors wish to thank the other members of the Research Committee, Drs. David R. Burns, Harvey Horowitz, Edward Karmiol, Franklin G. Maleson, Melvin Singer, Levon D. Tashjian, and Joan K. Grossman, R.N., for their helpful comments and criticisms in the preparation of this paper.
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Crabtree et al. (1974) studied this question.
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