000			00359nam a2200121Ia 4500
008			251112s9999||||xx |||||||||||||| ||und||
040			_aCNCLSA
245		0	_aProceedings of the National Academy Of Sciences of the United States of America
260			_cJuly 1, 1992 _bProc. Natl. Acad. Sci. _aU.S.A
300			_aP. 5701-6664
300			_bV. 89
942			_cJRBV
999			_c11078 _d11078