155
Although there have been case reports of epidural morphine with these symptoms and signs , this has not been previously documented with IV or patient - controlled analgesia morphine .
 Chemical: morphine; Chemical: morphine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: morphine; Chemical: morphine