000 00365nam a2200121Ia 4500
008 251117s9999||||xx |||||||||||||| ||und||
020 _a897662946
100 _aSmith, George F.
_9110811
245 0 _aMolecular Structure of the Number 21 Chromosome and Down Syndrome Vol-450th
260 _bThe New York Academy of Sciences
_c1985
300 _a250p.
942 _cBK
999 _c270386
_d270386