1. Posthyperventilation Apnea Associated with Severe Hypoxemia
Kenneth F. MacDonnell, M.D., F.C.C.P., John T. Bowers, M.D., Robert E. Flynn, M.D. 
CHEST 
Volume 70, Issue 4, Pages (October 1976)
DOI: /chest
Copyright © 1976 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Wide swings in PaCO2, PaCO2, and pH are depicted during various periods of hyperventilation and apnea
CHEST  , DOI: ( /chest )
Copyright © 1976 The American College of Chest Physicians Terms and Conditions