000 00271 a2200121 4500
008 151002tMay-Aug. 1990
245 _aVirology & AIDS Abstracts
250 _aVol. 23
260 _aU.S.A.
260 _bCambridge Scientific Abstracts
260 _cMay-Aug. 1990
942 _cBV
999 _c4066
_d4066