The effect of atmospheric ions on the respiratory system of infants.
D000388:Air; D000390:Air Ionization; D001249:Asthma / Q000628:therapy*; D001991:Bronchitis / Q000628:therapy*; D005260:Female; D006801:Humans; D007223:Infant; D007477:Ions; D008297:Male
D007477:Ions