00275nam a2200097Ia 4500008004100000040001100041245004500052260005400097300001600151300001000167251112s9999||||xx |||||||||||||| ||und||  aCNCLSA 0aJournal of the National Cancer Institute  cApril, 1979bNational Institutes of HealthaU.S.A  aP. 713-1589  bV. 62