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Comparison of aqueous and gellan ophthalmic timolol with placebo on the 24 - hour heart rate response in patients on treatment for glaucoma .
 Chemical: timolol; Disease: glaucoma
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: timolol; Disease: glaucoma