74745
Thus , considerable evidence supports the role of tobacco-specific nitrosamines as important causative factors for cancers of the lung , pancreas , esophagus , and oral cavity in people who use tobacco products .
 lung, pancreas, esophagus, oral cavity
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:
 lung, pancreas, esophagus, oral cavity