1210
The activation of spinal N - methyl - D - aspartate receptors may contribute to degeneration of spinal motor neurons induced by neuraxial morphine after a noninjurious interval of spinal cord ischemia .
 Chemical: N - methyl - D - aspartate; Chemical: morphine; Disease: spinal cord ischemia
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: N - methyl - D - aspartate; Chemical: morphine; Disease: spinal cord ischemia