00799nam a22002657i 4500 20141212085846.0 871224s1987 sp gr 000 0 spa c eng CHAMPION, P. AN INVESTIGATION OF THE SENSORIMOTOR DEVELOPMENT OF DOWN'S SYNDROME INFANTS INVOLVED IN AN ECOLOGICALLY BASED EARLY INTERVENTION PROGRAMME:A LONGITUDINAL STUDY Discapacidad intelectual Estimulación precoz Psicomotricidad Síndrome de Down Discapacidad Documental BRITISH JOURNAL OF MENTAL SUBNORMALITY Vol. 33, no. 65 (1987), p. 88-99 11.1 48.31 A11a H9a AR 19871224 R.119 AR