title: Influence of trivalent influenza vaccine on serum theophylline levels.
mesh_terms: D000328:Adult; D001249:Asthma / Q000097:blood / Q000188:drug therapy; D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000494:pharmacology*; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000097:blood*
chemical_list: D007252:Influenza Vaccines; D013806:Theophylline