000			00370nam a2200133Ia 4500
008			251112s9999||||xx |||||||||||||| ||und||
040			_aCNCLSA
100			_aRobert L. Sinsheimer
245		0	_aProceedings of the National Academy Of Sciences of the United States of America
260			_cJuly, 1978 _aU.S.A
300			_aP. 3011-4632
300			_bV. 75
942			_cJRBV
999			_c15232 _d15232