20986
Moreover , 3 and 5 mM strontium strongly stimulated protein expression and mRNA levels of type II collagen and IGF - 1 .
 Chemical: strontium
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: strontium