3652
Nonsteroidal anti - inflammatory drugs ( NSAIDs ) can cause serious gastrointestinal ( GI ) injury including jejunal / ileal mucosal ulceration , bleeding , and even perforation in susceptible patients .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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