000			00322nam a22001217a 4500
050			_aMED RC620 _bB59
245			_aBiochemical screening in relation to mental retardation
260			_aOxford _bPergamon _c1971
300			_aviii,33p. _bill.
650			_aMental retardation
700			_aCusworth, D.C.(editor)
942			_cBK
999			_c15496 _d15496