00301nam a2200097Ia 4500008004100000040001100041100001800052245007300070260004700143300001300190251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aDaniel Billen 0aRadiation ResearchbOfficial Organ of the Radiation Research Society  c1948bThe National Cancer InstituteaU.S.A  aP. 1-442