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. 1999 Jun;73(6):4696–4704. doi: 10.1128/jvi.73.6.4696-4704.1999

TABLE 1.

Characterization of HXB2Bgl and HXB2ProBgl virions derived from H9 cellsa

Virion morphology HXB2Bgl HXB2ProBgl
Mature particles (%) 76 14
Immature particles (%) 24 86
No. of particles examined 322 234
a

Virion morphology was distinguished as either mature or immature.