00297nam a2200109Ia 4500008004100000022001400041040001100055245001200066260008700078300001300165300000900178251112s9999||||xx |||||||||||||| ||und||  a0036-8075  aCNCLSA 0aScience  cApril 5, 1996bThe American Association for the Advancement of ScienceaWashington  aP. 1-920  bV.15