00302nam a2200109Ia 4500008004100000040001100041100001900052245004100071260005300112300001600165300001100181251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aZanvil A. Cohn 4aThe Journal of Experimental Medicine  c1981bThe Rockefeller University PressaNew York  aP. 753-1720  bV. 153