1. Risk of Aspiration Pneumonia in the Elderly
Hideki Nakazawa, M.D., Kiyohisa Sekizawa, M.D., Yuko Ujiie, M.D., Hidetada Sasaki, M.D., F.C.C.P., Tamotsu Takishima, M.D., F.C.C.P. 
CHEST 
Volume 103, Issue 5, Pages (May 1993)
DOI: /chest b
Copyright © 1993 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Threshold of cough response to citric acid and latent time of swallowing in the controls (open circles), patients with dementia (triangles), and patients with aspiration pneumonia (solid circles). Broken lines at lower left corner indicate the upper limits of the two parameters in the controls. Other broken lines indicate the lower limits in patients with aspiration pneumonia.
CHEST  , DOI: ( /chest b)
Copyright © 1993 The American College of Chest Physicians Terms and Conditions