Am Fam Physician. 1998;58(4):866
An incorrect statement was made in the article “High-Altitude Medicine” (April 15, 1998, p. 1907). On page 1913, the fifth sentence of the first full paragraph should have stated that the travel medicine literature uses room-air PaCO2 of greater than 50 mm Hg as a contraindication to airline travel without supplemental oxygen.