Dear Marion,

Thank you for your letter. I look forward to seeing you on Monday.
The oxygen saturation values which you report seem to me very
gratifying, tending to corroborate my hypothesis that your breathing
difficulties reflect neither bronchial obstruction (asthma), impaired
alveolar diffusion, (pulmonary hypertension), nor alveolar stagnation
(emphysema) but rather a relative central nervous system insensitivity
to anoxia readily susceptible to conscious compensation. If the
Homeland Security folks and the airlines don't object, I would be
interested to know the oxygen saturation values in the airplane at
cruising altitude.

See you on Monday. My cell phone number is 617-548-5768. The home
phone, which would be answered by Margaret is 617-484-8109.

Jochen