National Apostolate for the Mentally Retarded Quarterly Publication, 6, 3 (Fall 1975), pp. 16-18, pp. 27-29; also reprinted in Catholic Mind, LXXIV, 1302 (April 1976), pp. 24-33; and in Ethics in Medicine, edited by Reiser, Dyke and Curran (Cambridge: MIT Press, 1977), pp. 631-635