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A comparison of glyceryl trinitrate with diclofenac for the treatment of primary dysmenorrhea : an open , randomized , cross - over trial .
 Chemical: glyceryl trinitrate; Chemical: diclofenac; Disease: dysmenorrhea
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: glyceryl trinitrate; Chemical: diclofenac; Disease: dysmenorrhea