000 00362nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aProceedings of the National Academy Of Sciences of the United States of America
260 _cAugust 16, 1994
_bProc. Natl. Acad. Sci.
_aU.S.A
300 _aP. 7833-8728
300 _bV. 93
942 _cJRBV
999 _c32278
_d32278