title: Effect of immunostimulation with the Corynebacterium granulosum derived immunomodulator P40 on patients with recurring respiratory infections.
mesh_terms: D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000276:immunology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011424:Propionibacterium / Q000276:immunology*; D012008:Recurrence