00330nam a2200121Ia 4500008004100000022001400041040001100055100001600066245005200082260005000134300001300184300001100197251112s9999||||xx |||||||||||||| ||und||  a0028-0836  aCNCLSA  aJohn Maddox 0aNaturebInternational Weekly Journal of Science  cJuly 2, 1992bMacmillan Magazines LtdaLondon  aP. 1-354  bV. 358