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040 _cPOF
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082 _222
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100 _aCharles H. Heimler
245 _aFocus on life sicence
260 _bA Bell & How Ell Corp
260 _bUSA
260 _c1984
300 _a536p
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440 _aFocus on life sicence
546 _aEn
600 _aBiology
942 _cBK
_2ddc