100168
Fasting is always practiced prior to surgery or other procedures that require general anesthesia because of the risk of pulmonary aspiration of gastric contents after induction of anesthesia ( i.e. , vomiting and inhaling the vomit , causing life-threatening aspiration pneumonia ) .
 pulmonary aspiration, aspiration pneumonia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 pulmonary aspiration, aspiration pneumonia