00301nam a2200097Ia 4500008004100000040001100041100001800052245007300070260005000143300001000193251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aDaniel Billen 0aRadiation ResearchbOfficial Organ of the Radiation Research Society  cSeptember, 1971bThe Johns Hopkins University  bV. 68