00321nam a2200121Ia 4500008004100000022001400041040001100055100002300066245002400089260006200113300001400175300001000189251112s9999||||xx |||||||||||||| ||und||  a0022-538x  aCNCLSA  aEdward M. Scolnick 0aJournal of Virology  cJuly, 1982bAmerican Society for MicrobiologyaWashington  aP. 1-1154  bV. 43