00297nam a2200109Ia 4500008004100000040001100041100002200052245005500074260003500129300001400164300000900178251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aPedro Cuatrecasas 0aBiochemical and biophysical research communication  c1983bAcademic PressaNew York  aP. 1-1180  bV.43