title: Reversal of T cell helper/suppressor ratios in intravenous drug abusers with nonopportunistic infections.
mesh_terms: D000328:Adult; D001424:Bacterial Infections / Q000276:immunology*; D005260:Female; D006801:Humans; D007958:Leukocyte Count; D008297:Male; D008875:Middle Aged; D019966:Substance-Related Disorders / Q000150:complications*; D013601:T-Lymphocytes