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For example , although aspirin is a generally well - tolerated pain reliever and is increasingly advocated as a preventative tool for heart attacks and colorectal cancer ( Vainio and Miller 2003 ; Werner et al . 2004 ) , it is also linked to increased risk of gastrointestinal bleeding , cerebral hemorrhage ( Werner et al . 2004 ) , and asthma attacks ( Jenkins et al . 2004 ) .
 heart, colorectal cancer, gastrointestinal, cerebral
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 heart, colorectal cancer, gastrointestinal, cerebral