1. Volume 119, Issue 1, Pages 310-311 (January 2001)
Heat It or Wet It? Nasal Symptoms Secondary to the Use of Continuous Positive Airway Pressure in Sleep Apnea 
Winck João C. , MD, Delgado José Luis , MD, Almeida João , MD, Marques José Agostinho , MD, PhD 
CHEST 
Volume 119, Issue 1, Pages (January 2001)
DOI: /chest
Copyright © 2001 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Serial n, PIF (black line) and nasal symptoms score(bars) in a patient with OSAS before and after circuit natural warming(placing the circuit of the nasal CPAP under bedclothes).
CHEST  , DOI: ( /chest )
Copyright © 2001 The American College of Chest Physicians Terms and Conditions