00318nam a2200109Ia 4500008004100000040001100041100002100052245002400073260008400097300001700181300001000198251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aRobert R. Wagner 0aJournal of Virology  cJuly, 1982bThe American Association for the Advancement of ScienceaWashington  aP. 2415-3158  bV. 43