1. 
   Subglottis
   Part of the voice box (larynx) - the area below the vocal cords that contains the cricoid cartilage and continues down into the windpipe (trachea).
   Found op http://www.cancerhelp.org.uk/utilities/glossary/index.htm?search=s
   
   
2. 
   Subglottis
   Subglottis: The lower part of the larynx just below the vocal cords down to the top of the trachea, which takes air to the lungs.
   Found op http://www.medterms.com/script/main/art.html?articlekey=5579
   
   
3. 
   subglottis
   The lower part of the larynx; the area from just below the vocal cords down to the top of the trachea. ... (12 Dec 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?subglottis
   
   
4. 
   subglottis
   The lowest part of the larynx; the area from just below the vocal cords down to the top of the trachea.
   Found op http://www.cancer.gov/dictionary?expand=S
   
   

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