[ATTEMPT TO DO A MEDICAL REVIEW OF OXYGEN THERAPY].
D005762:Gastroenterology; D006801:Humans; D010100:Oxygen; D010102:Oxygen Inhalation Therapy; D012140:Respiratory Tract Diseases
D010100:Oxygen
GASTROENTEROLOGY; OXYGEN INHALATION THERAPY; RESPIRATORY TRACT DISEASES
INTENTO DE RECOPILACION MEDICA OXIGENOTERAPICA.