3694
In 35 patients ( ages 20 to 86 yr ) receiving cimetidine therapeutically two serum samples and all urine formed in the interim were collected for analysis of cimetidine by high - pressure liquid chromatography and for creatinine .
 Chemical: cimetidine; Chemical: cimetidine; Chemical: creatinine
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: cimetidine, cimetidine, creatinine 
Answer:
 Chemical: cimetidine; Chemical: cimetidine; Chemical: creatinine