00305nam a2200109Ia 4500008004100000040001100041100002100052245004100073260005800114300001400172300000900186251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aHoward Andervont 0aJournal Of National Cancer Institute  c1957bUS Department Of Health And Human ServicesaUSA  aP.133-465  bV.19