3928
DESIGN : The Expanded Clinical Evaluation of Lovastatin ( EXCEL ) Study , a multicenter , double - blind , diet - and placebo - controlled trial , in which participants were randomly assigned to receive placebo or lovastatin at doses of 20 or 40 mg once daily , or 20 or 40 mg twice daily for 48 weeks .
 Chemical: Lovastatin; Chemical: lovastatin
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: Lovastatin; Chemical: lovastatin