00277nam a2200109Ia 4500008004100000040001100041100002100052245002400073260004900097300001200146300000900158251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aRobert r. Wagner 0aJournal Of Virology  c1973bAmerican Society For MicrobiologyaUSA  aP.1-420  bV.18