1. Home Oxygen Therapy* Mayo Clinic Proceedings
THOMAS L. PETTY, M.D. 
Mayo Clinic Proceedings 
Volume 62, Issue 9, Pages (September 1987)
DOI: /S (12)
Copyright © 1987 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Neuropsychologic performance of patients with chronic obstructive pulmonary disease at three levels of hypoxemia in comparison with performance of age-matched control subjects. EQ = equal to; GT = greater than; LT = less than; PAO2 = arterial oxygen tension.
(From Grant and Heaton.22 By permission of Marcel Dekker.)
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1987 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Fig. 2
Photograph of device for transtracheal administration of oxygen.
(From Petty TL, Nett LM: Enjoying Life With Emphysema. Second edition. Philadelphia, Lea & Febiger, By permission.)
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1987 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Fig. 3
Photograph of a commercially available device, in which oxygen cannulas are partially concealed in eyeglass frames.
(From Petty TL, Nett LM: Enjoying Life With Emphysema. Second edition. Philadelphia, Lea & Febiger, By permission.)
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1987 Mayo Foundation for Medical Education and Research Terms and Conditions