23100
We conducted a literature search to identify studies of patients with ESRD on dialysis that evaluated the role of niacin and related compounds in decreasing serum phosphorus levels .
 Chemical: niacin; Chemical: phosphorus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: niacin; Chemical: phosphorus