Fungi and bacteria in the etiology of respiratory allergic disease.  XVI.  Further studies of the No. 33 extraction process:  a comparative study of several dust extracts.
D000690:Amyotrophic Lateral Sclerosis / Q000453:epidemiology*; D001419:Bacteria; D004391:Dust; D005658:Fungi; D006967:Hypersensitivity / Q000209:etiology*; D012137:Respiratory System; D012140:Respiratory Tract Diseases
D004391:Dust
ALLERGY/etiology and pathogenesis; AMYOTROPHIC LATERAL SCLEROSIS/epidemiology; DUST; RESPIRATORY TRACT/diseases