9989
Although there was no statistical difference ( p > 0 . 05 ) between the groups regarding the levels of K , P , Mg , Na , Cl , Zn , Fe , Ca and Cu , some positive correlations were observed in controls but not in smokers .
 Chemical: K; Chemical: P; Chemical: Mg; Chemical: Na; Chemical: Cl; Chemical: Zn; Chemical: Fe; Chemical: Ca; Chemical: Cu
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: K; Chemical: P; Chemical: Mg; Chemical: Na; Chemical: Cl; Chemical: Zn; Chemical: Fe; Chemical: Ca; Chemical: Cu